Re: DA 21mm on film? was Re: SV: 21mm limitted is a jewel ...

2006-07-20 Thread Jan van Wijk
On Wed, 19 Jul 2006 11:25:21 -0700, Godfrey DiGiorgi wrote:

 I'm sure the DA 21mm, unlike the DA 40mm, won't work very well for  
 35mm
 film, but has anyone tried it, just for grins?  Any test shots out
 there?

I haven't seen anything yet, Mike. The DA21 is just getting into the  
market and DSLR buyers are first to the plate. The relevance of a  
DA21 over an FA20 for film camera users is questionable, since  
they're about the same money and evidently perform very similarly.

I have not made any test shots, but I did mount 
the DA 21 on my MX and the LX. 

It shows severe vignetting with the hood (as expected),
and still very noticable vignetting without it.  It is a rather 
abrupt vignetting in all four corners, with a usable image
circle of about 39 to 40 mm I would say.
(would allow for a 22x33mm crop)

This is as seen on the LX groundglass directly, 
no viewfinder mounted, and nearly closed aperture.

Regards, JvW


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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Sylwester Pietrzyk
On 18.07.2006, at 21:33 , Mark Roberts wrote:

 My other Limiteds (43, 31, 77) are all f/1.9 or faster. That's a lot
 more than a third of a stop! F/2.0 and under is Limited territory for
 me. I'd *consider* the upcoming  70/2.4 if it were under $500 (and if
 I didn't already have the 77!)
Yes, but but don't forget DA Limiteds are much cheaper than their  
faster, FF counterparts. FA 31/1.8 is about two times as expensive as  
having similar FOV 21/3.2, not to speak that DA is much smaller,  
lighter and takes 49 mm filters instead of 58 mm...

Cheers,
Sylwek



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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread David Savage
At 02:59 PM 19/07/2006, Sylwek wrote:
On 18.07.2006, at 21:33 , Mark Roberts wrote:

  My other Limiteds (43, 31, 77) are all f/1.9 or faster. That's a lot
  more than a third of a stop! F/2.0 and under is Limited territory for
  me. I'd *consider* the upcoming  70/2.4 if it were under $500 (and if
  I didn't already have the 77!)
Yes, but but don't forget DA Limiteds are much cheaper than their
faster, FF counterparts. FA 31/1.8 is about two times as expensive as
having similar FOV 21/3.2, not to speak that DA is much smaller,
lighter and takes 49 mm filters instead of 58 mm...


They're cheaper because they're slower.

I bet if they had made it f1.9, it would be similarly priced to it's full 
frame big brothers. Admittedly it would be physically larger  weightier as 
well

Cheers,

Dave


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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Sylwester Pietrzyk
On 19.07.2006, at 11:06 , David Savage wrote:

 They're cheaper because they're slower.

 I bet if they had made it f1.9, it would be similarly priced to  
 it's full
 frame big brothers. Admittedly it would be physically larger   
 weightier as
 well
Exactly - that's what we're talking about :-) If they were faster  
they wouldn't be pancakes - really small and affordable but  
excellent optically and beautifully built lenses. That's the idea of  
new Limiteds - highly portable set of top primes at the expense of  
maximum aperture.

Cheers,
Sylwek



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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Kostas Kavoussanakis
On Wed, 19 Jul 2006, David Savage wrote:

 At 02:59 PM 19/07/2006, Sylwek wrote:
 On 18.07.2006, at 21:33 , Mark Roberts wrote:

 My other Limiteds (43, 31, 77) are all f/1.9 or faster. That's a lot
 more than a third of a stop! F/2.0 and under is Limited territory for
 me. I'd *consider* the upcoming  70/2.4 if it were under $500 (and if
 I didn't already have the 77!)
 Yes, but but don't forget DA Limiteds are much cheaper than their
 faster, FF counterparts. FA 31/1.8 is about two times as expensive as
 having similar FOV 21/3.2, not to speak that DA is much smaller,
 lighter and takes 49 mm filters instead of 58 mm...

 They're cheaper because they're slower.

They also cover a smaller image-circle.

And there may be thousands other differentiations between these 
lenses. On spec only you cannot tell why one is cheaper than another. 
Take the 24-90 and the latest 28-105 as examples; both 3.75x zooms, at 
comparable FLs with comparable apertures, yet the prices are so 
different.

But I stronbly object to Sylwek's (of all people) comparison of the 31 
with the 21 on the grounds that if you mount one on a horse it gives 
you the same fart as if you mount the other on a pig or sth.

Kostas

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread David Savage
On 7/19/06, Sylwester Pietrzyk [EMAIL PROTECTED] wrote:
 On 19.07.2006, at 11:06 , David Savage wrote:

  They're cheaper because they're slower.
 
  I bet if they had made it f1.9, it would be similarly priced to
  it's full
  frame big brothers. Admittedly it would be physically larger 
  weightier as well

 Exactly - that's what we're talking about :-)

Oh, OK. Sometimes it's hard to tell :-)

 If they were faster
 they wouldn't be pancakes - really small and affordable but
 excellent optically and beautifully built lenses. That's the idea of
 new Limiteds - highly portable set of top primes at the expense of
 maximum aperture.


I hope that's not the case for any future limited lenses. If it is,
then I doubt I'll buy any of them. I'm not tempted by either the 21 or
70. I want fast primes, not small.

But that's just my preference.

Dave

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Re: Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread mike wilson

 
 From: Kostas Kavoussanakis [EMAIL PROTECTED]
 Date: 2006/07/19 Wed AM 09:36:45 GMT
 To: Pentax-Discuss Mail List pdml@pdml.net
 Subject: Re: SV: 21mm limitted is a jewel ...
 
 On Wed, 19 Jul 2006, David Savage wrote:
 
  At 02:59 PM 19/07/2006, Sylwek wrote:
  On 18.07.2006, at 21:33 , Mark Roberts wrote:
 
  My other Limiteds (43, 31, 77) are all f/1.9 or faster. That's a lot
  more than a third of a stop! F/2.0 and under is Limited territory for
  me. I'd *consider* the upcoming  70/2.4 if it were under $500 (and if
  I didn't already have the 77!)
  Yes, but but don't forget DA Limiteds are much cheaper than their
  faster, FF counterparts. FA 31/1.8 is about two times as expensive as
  having similar FOV 21/3.2, not to speak that DA is much smaller,
  lighter and takes 49 mm filters instead of 58 mm...
 
  They're cheaper because they're slower.
 
 They also cover a smaller image-circle.
 
 And there may be thousands other differentiations between these 
 lenses. On spec only you cannot tell why one is cheaper than another. 
 Take the 24-90 and the latest 28-105 as examples; both 3.75x zooms, at 
 comparable FLs with comparable apertures, yet the prices are so 
 different.
 
 But I stronbly object to Sylwek's (of all people) comparison of the 31 
 with the 21 on the grounds that if you mount one on a horse it gives 
 you the same fart as if you mount the other on a pig or sth.

Mark!


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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Aaron Reynolds

On Jul 19, 2006, at 5:50 AM, David Savage wrote:

 I hope that's not the case for any future limited lenses. If it is,
 then I doubt I'll buy any of them. I'm not tempted by either the 21 or
 70. I want fast primes, not small.

There are these three other Limited lenses available, just for you.  ;)

-Aaron

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread David Savage
On 7/19/06, Aaron Reynolds [EMAIL PROTECTED] wrote:

 On Jul 19, 2006, at 5:50 AM, David Savage wrote:

  I hope that's not the case for any future limited lenses. If it is,
  then I doubt I'll buy any of them. I'm not tempted by either the 21 or
  70. I want fast primes, not small.

 There are these three other Limited lenses available, just for you.  ;)

I know. I already have 2.

Dave

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Aaron Reynolds

On Jul 19, 2006, at 8:36 AM, David Savage wrote:

 I hope that's not the case for any future limited lenses. If it is,
 then I doubt I'll buy any of them. I'm not tempted by either the 21 
 or
 70. I want fast primes, not small.

 There are these three other Limited lenses available, just for you.  
 ;)

 I know. I already have 2.

I just mean that when the DA Limited lineup overlaps directly on the FA 
lineup (I'm thinking of the 40 - 43 and 70 - 77) and in those instances 
the lenses are smaller and slower, I don't think you have to panic -- 
they're not bigger and faster because those lenses already exist and 
are reasonably current in their larger/faster incarnation.

-Aaron

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Mark Roberts
Aaron Reynolds wrote:

There are these three other Limited lenses available, just for you.  ;)

Lens porn:
http://www.robertstech.com/temp/IMGP6706.jpg
;-)
 
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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread P. J. Alling
You should be ashamed.

Mark Roberts wrote:

Aaron Reynolds wrote:

  

There are these three other Limited lenses available, just for you.  ;)



Lens porn:
http://www.robertstech.com/temp/IMGP6706.jpg
;-)
 
  



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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Kostas Kavoussanakis
On Wed, 19 Jul 2006, P. J. Alling wrote:

 Mark Roberts wrote:

 Lens porn:
 http://www.robertstech.com/temp/IMGP6706.jpg
 ;-)

 You should be ashamed.

Absolutely. They are silver.

But I can (sort of) see where porn comes into play: the black cap 
reminds me of Cleese in his socks in A Fish Called Wanda.

Kostas

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread David Savage
On 7/19/06, Mark Roberts [EMAIL PROTECTED] wrote:
 Lens porn:
 http://www.robertstech.com/temp/IMGP6706.jpg
 ;-)


Not as porntastic as yours but here's my mixed bag...

http://www.arach.net.au/~savage/Misc/IMGP5070.jpg

Dave

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Re: Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread mike wilson

 
 From: David Savage [EMAIL PROTECTED]
 Date: 2006/07/19 Wed PM 02:43:11 GMT
 To: Pentax-Discuss Mail List pdml@pdml.net
 Subject: Re: SV: 21mm limitted is a jewel ...
 
 On 7/19/06, Mark Roberts [EMAIL PROTECTED] wrote:
  Lens porn:
  http://www.robertstech.com/temp/IMGP6706.jpg
  ;-)
 
 
 Not as porntastic as yours but here's my mixed bag...
 
 http://www.arach.net.au/~savage/Misc/IMGP5070.jpg
 

You folks had better stop this, or someone (no names, no pack drill) is going 
to make you feel all soft and insignificant.  That's what it did for me, 
anyway..


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Re: Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread mike wilson

 
 From: David Savage [EMAIL PROTECTED]
 Date: 2006/07/19 Wed PM 02:43:11 GMT
 To: Pentax-Discuss Mail List pdml@pdml.net
 Subject: Re: SV: 21mm limitted is a jewel ...
 
 On 7/19/06, Mark Roberts [EMAIL PROTECTED] wrote:
  Lens porn:
  http://www.robertstech.com/temp/IMGP6706.jpg
  ;-)
 
 
 Not as porntastic as yours but here's my mixed bag...
 
 http://www.arach.net.au/~savage/Misc/IMGP5070.jpg
 

You folks had better stop this, or someone (no names, no pack drill) is going 
to make you feel all soft and insignificant.  That's what it did for me, 
anyway..


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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread John Francis
On Wed, Jul 19, 2006 at 10:36:45AM +0100, Kostas Kavoussanakis wrote:
 On Wed, 19 Jul 2006, David Savage wrote:
 
  At 02:59 PM 19/07/2006, Sylwek wrote:
  On 18.07.2006, at 21:33 , Mark Roberts wrote:
 
  My other Limiteds (43, 31, 77) are all f/1.9 or faster. That's a lot
  more than a third of a stop! F/2.0 and under is Limited territory for
  me. I'd *consider* the upcoming  70/2.4 if it were under $500 (and if
  I didn't already have the 77!)
  Yes, but but don't forget DA Limiteds are much cheaper than their
  faster, FF counterparts. FA 31/1.8 is about two times as expensive as
  having similar FOV 21/3.2, not to speak that DA is much smaller,
  lighter and takes 49 mm filters instead of 58 mm...
 
  They're cheaper because they're slower.
 
 They also cover a smaller image-circle.

I'd be surprised if the DA 70 didn't cover a 35mm frame.

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread David Savage
On 7/19/06, Aaron Reynolds [EMAIL PROTECTED] wrote:
 I just mean that when the DA Limited lineup overlaps directly on the FA
 lineup (I'm thinking of the 40 - 43 and 70 - 77) and in those instances
 the lenses are smaller and slower, I don't think you have to panic --
 they're not bigger and faster because those lenses already exist and
 are reasonably current in their larger/faster incarnation.

I'm not panicking. It's just with the release of the K100D  the
upcoming K10D, I'd just like to see more high quality faster glass to
go with these bodies.

So far I haven't been all that impressed with the DA lenses I've
bought. I got the DA 16-45 f4 after reading all the positive reviews
of those here on the PDML,  I needed something wider, but I don't
think it's as good as the hype. I use them (DA16-45  DA10-17) 
they're OK, but none of them have made me go WOW, this is a kick ass
lens. Maybe the pancake limited's would make me change my opinion :-)

Hopefully the upcoming DA 50-135 f2.8  DA16-50 f2.8 are of equal
quality to their FA predecessors.

Cheers,

Dave

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread David Savage
At 11:29 PM 19/07/2006, Godfrey DiGiorgi  wrote:

On Jul 19, 2006, at 6:23 AM, Mark Roberts wrote:

  Lens porn:
  http://www.robertstech.com/temp/IMGP6706.jpg

Just look at how obese that 31mm lens looks compared to even its 43
and 77 mm siblings, never mind the DA21. Pornographic indeed. ]'-)

It's not obese, just excited. The other two are cold.

Dave 


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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Godfrey DiGiorgi

On Jul 19, 2006, at 6:23 AM, Mark Roberts wrote:

 Lens porn:
 http://www.robertstech.com/temp/IMGP6706.jpg

Just look at how obese that 31mm lens looks compared to even its 43  
and 77 mm siblings, never mind the DA21. Pornographic indeed. ]'-)

I had the 31 and didn't like it much although it was a fine  
performer. The 77 is delightful, the 43 (and 40...) does not interest  
me as the focal length is neither here nor there for the 16x24  
format. The DA21 piques my interest but I really really want a  
compact 28mm f/2... sigh.

Perhaps another reason that the DA Limiteds are being designed for  
compactness and quality rather than speed is that the DSLRs they are  
designed to work with produce so much cleaner results at ISO 400 to  
1600 than the film SLRs that the prior series was designed to  
complement. That consideration would certainly shift my design  
priorities if I were the engineering lead. The fact that they're  
incorporating the QuickShift focusing feature is one of the biggest  
reasons for me to be interested in the 21 and 70 mm ... the maximum  
aperture difference is mostly irrelevant.

Godfrey

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Kostas Kavoussanakis
On Wed, 19 Jul 2006, Godfrey DiGiorgi wrote:

 Perhaps another reason that the DA Limiteds are being designed for
 compactness and quality rather than speed is that the DSLRs they are
 designed to work with produce so much cleaner results at ISO 400 to
 1600 than the film SLRs that the prior series was designed to
 complement.

That's an excellent point Godfrey.

Kostas

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Mark Roberts
Kostas Kavoussanakis wrote:

On Wed, 19 Jul 2006, Godfrey DiGiorgi wrote:

 Perhaps another reason that the DA Limiteds are being designed for
 compactness and quality rather than speed is that the DSLRs they are
 designed to work with produce so much cleaner results at ISO 400 to
 1600 than the film SLRs that the prior series was designed to
 complement.

That's an excellent point Godfrey.

That probably is their reasoning. Still, fast lenses are important
even when you're shooting stopped down (as I almost always do) because
of the brighter viewfinder. Several times while doing pre-dawn
photography I've switched from my 20/2.8 to a faster lens simply
because I couldn't see how my shots were framed with the slow 2.8
aperture. This has happened with the MZ-S and with the ist-D; both
pentaprism cameras with good viewfinders.
 
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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Amita Guha
On 7/18/06, Adam Maas [EMAIL PROTECTED] wrote:
 Mark Roberts wrote:
  Adam Maas wrote:

 Well, Sigma does make a 20mm f1.8 just for folks like you.

 But it's bigger than the DS.

Yep, it's a monster, but I have it. Tack sharp, fast, focuses closely.
Lots of fun, even if it does weigh a ton.

But yeah, I'd prefer speed over small size as well.

Amita

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread William Robb

- Original Message - 
From: David Savage 
Subject: Re: SV: 21mm limitted is a jewel ...



 Not as porntastic as yours but here's my mixed bag...
 
 http://www.arach.net.au/~savage/Misc/IMGP5070.jpg


Go have a nice little cry.
This is an old picture

http://users.accesscomm.ca/wrobb/pictures/I_SUCK/the_fleet.html

William Robb


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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread P. J. Alling
We know and you still suck...

William Robb wrote:

- Original Message - 
From: David Savage 
Subject: Re: SV: 21mm limitted is a jewel ...



  

Not as porntastic as yours but here's my mixed bag...

http://www.arach.net.au/~savage/Misc/IMGP5070.jpg




Go have a nice little cry.
This is an old picture

http://users.accesscomm.ca/wrobb/pictures/I_SUCK/the_fleet.html

William Robb


  



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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread P. J. Alling
A large part of a wider maximum aperture is easier focusing, weather 
autofocus or manual an F2 lens will lock a lot faster than an F3.5.  My 
SMC Takumar 35mm f3.5 gives excellent  results on film and digital but 
it's a PITA to achieve  precise focus, under anything other than the 
brightest lighting conditions.

Kostas Kavoussanakis wrote:

On Wed, 19 Jul 2006, Godfrey DiGiorgi wrote:

  

Perhaps another reason that the DA Limiteds are being designed for
compactness and quality rather than speed is that the DSLRs they are
designed to work with produce so much cleaner results at ISO 400 to
1600 than the film SLRs that the prior series was designed to
complement.



That's an excellent point Godfrey.

Kostas

  



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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread frank theriault
On 7/19/06, P. J. Alling [EMAIL PROTECTED] wrote:
 You should be ashamed.

I assure you:

I met him and I know him.  Mark Roberts has no shame.

cheers,
frank

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Godfrey DiGiorgi


On Jul 19, 2006, at 10:19 AM, P. J. Alling wrote:
 Perhaps another reason that the DA Limiteds are being designed for
 compactness and quality rather than speed is that the DSLRs they are
 designed to work with produce so much cleaner results at ISO 400 to
 1600 than the film SLRs that the prior series was designed to
 complement.

 That's an excellent point Godfrey.

 A large part of a wider maximum aperture is easier focusing, whether
 autofocus or manual an F2 lens will lock a lot faster than an  
 F3.5.  My
 SMC Takumar 35mm f3.5 gives excellent  results on film and digital but
 it's a PITA to achieve  precise focus, under anything other than the
 brightest lighting conditions.

While brightness is very helpful for focusing, I don't think I can  
easily see a 0.3 to 1.0 stop difference in the viewfinder brightness  
without comparing. Contrast at the focusing aperture is actually more  
significant ... For instance, I found the A24/2.8 to be easier to  
focus accurately than the A28/2.8 due to its higher contrast when  
wide open, and the FA20-35/4 to be better than either for the same  
reason, despite being 1 stop slower.

This is just as true for auto focus as it is for manual focus, btw.

 That probably is their reasoning. Still, fast lenses are important
 even when you're shooting stopped down (as I almost always do) because
 of the brighter viewfinder. Several times while doing pre-dawn
 photography I've switched from my 20/2.8 to a faster lens simply
 because I couldn't see how my shots were framed with the slow 2.8
 aperture.

I'm sorry, but I just can't believe that you cannot see how a shot is  
framed with an f/2.8 maximum aperture vs an f/2 or f/1.8, Mark. What  
lens faster than the 20/2.8 have you gone to with similar FoV?

My testing of the Sigma 20/1.8 showed it to have poorer wide-open  
resolution and contrast than the Canon EF20/2.8. Neither were at  
their best until f/4.5 or smaller (the Sigma caught up to the Canon  
at about f/5.6). The Pentax FA20/2.8 is better than the Canon wide  
open and proves sharper until f/5.6 from the short time I had  
evaluating one.

Manually focusing *any* very short focal length lens like the 20mm or  
14mm is challenging, and often times I find the AF system does a  
little better than I do if I'm in a hurry. When I have the time to  
work more slowly, the Pentax Magnifier FB 2x helps a lot for critical  
work as does the Olympus VariMagni's 1.5-2.5x magnification. However,  
the Katz Eye Optics screen I purchased significantly improves the  
manual focusing 'tooth' over the standard Pentax screens in the DS so  
that I find less need to use the optical magnification aids.

Godfrey

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DA 21mm on film? was Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread UncaMikey
I'm sure the DA 21mm, unlike the DA 40mm, won't work very well for 35mm
film, but has anyone tried it, just for grins?  Any test shots out
there?

*UncaMikey

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Cotty
On 19/7/06, Mark Roberts, discombobulated, unleashed:

Lens porn:
http://www.robertstech.com/temp/IMGP6706.jpg
;-)
 

Bit of pixelation on the window.

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread P. J. Alling
You've been shooting digital too long, that's a window screen...

Cotty wrote:

On 19/7/06, Mark Roberts, discombobulated, unleashed:

  

Lens porn:
http://www.robertstech.com/temp/IMGP6706.jpg
;-)




Bit of pixelation on the window.

  



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Re: DA 21mm on film? was Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Godfrey DiGiorgi
On Jul 19, 2006, at 10:56 AM, UncaMikey wrote:

 I'm sure the DA 21mm, unlike the DA 40mm, won't work very well for  
 35mm
 film, but has anyone tried it, just for grins?  Any test shots out
 there?

I haven't seen anything yet, Mike. The DA21 is just getting into the  
market and DSLR buyers are first to the plate. The relevance of a  
DA21 over an FA20 for film camera users is questionable, since  
they're about the same money and evidently perform very similarly.

Godfrey

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Kostas Kavoussanakis
On Wed, 19 Jul 2006, Godfrey DiGiorgi wrote:

 My testing of the Sigma 20/1.8 showed it to have poorer wide-open
 resolution and contrast than the Canon EF20/2.8.

In addition to your point re contrast, we discussed T-stops the other 
day too. I would be very interested to see the T-stop of the Sigma 
(and not at all that of the Nocan :-)).

Kostas

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Mark Roberts
Godfrey DiGiorgi wrote:

I'm sorry, but I just can't believe that you cannot see how a shot is  
framed with an f/2.8 maximum aperture vs an f/2 or f/1.8, Mark. 

Well it's true. What else can I say?

What lens faster than the 20/2.8 have you gone to with similar FoV?

FA*24/2.0 - which isn't that close but it's the closest I had at the
time. Photos from one such shoot are here:
http://www.robertstech.com/dolly_s.htm
Many shots like the third one simply couldn't be framed accurately
with the f/2.8 (I zone focused for all, BTW: both AF and manual focus
were out of the question in the darkness).
 
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Re: DA 21mm on film? was Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread UncaMikey
Relevant, perhaps not, but certainly interesting.  Quite a few people
seem to have both film and digital, and I was just curious if anyone
had tried it.  I have to admit, I am tempted by the new K100D, and
compactness is very important to me.  Not a big deal, in any event, I
suspect someone will fool around with it before long.

*UncaMikey

--- Godfrey DiGiorgi [EMAIL PROTECTED] wrote:

 I haven't seen anything yet, Mike. The DA21 is just getting into the 
 market and DSLR buyers are first to the plate. The relevance of a  
 DA21 over an FA20 for film camera users is questionable, since  
 they're about the same money and evidently perform very similarly.
 
 Godfrey

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Godfrey DiGiorgi

On Jul 19, 2006, at 11:38 AM, Mark Roberts wrote:

 Godfrey DiGiorgi wrote:

 I'm sorry, but I just can't believe that you cannot see how a shot is
 framed with an f/2.8 maximum aperture vs an f/2 or f/1.8, Mark.

 Well it's true. What else can I say?

 What lens faster than the 20/2.8 have you gone to with similar FoV?

 FA*24/2.0 - which isn't that close but it's the closest I had at the
 time. Photos from one such shoot are here:
 http://www.robertstech.com/dolly_s.htm
 Many shots like the third one simply couldn't be framed accurately
 with the f/2.8 (I zone focused for all, BTW: both AF and manual focus
 were out of the question in the darkness).

Sorry, I still can't believe it. I just fitted the 35/2 on my camera  
and set it to f/2.8, looked at the difference between f/2 and f/2.8  
using the DoF preview lever ... the brightness difference in the  
viewfinder is only barely discernible.

I suspect that the difference in field of view is what's making your  
24/2 seem easier to work with than the 20/2.8, and I would agree with  
that.

BTW: which one is the third on that page? Third from the top? ...  
third counting:

1 2
3 4
5
6 7
8 9? .. or the one marked Dolly Sods #3?

I can see how they might provide some challenge in framing due to low  
light and the difficulty in seeing through the viewfinder, but  
accurately is another question mark. What determines accurate  
framing on a landscape photograph? ]'-)

Godfrey

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Godfrey DiGiorgi
On Jul 19, 2006, at 11:37 AM, Kostas Kavoussanakis wrote:

 My testing of the Sigma 20/1.8 showed it to have poorer wide-open
 resolution and contrast than the Canon EF20/2.8.

 In addition to your point re contrast, we discussed T-stops the other
 day too. I would be very interested to see the T-stop of the Sigma
 (and not at all that of the Nocan :-)).

Not sure what a Nocan is. Here's the roster of elements in  
currently available Nikon, Canon, Pentax and Sigma fast 20mm lenses:

Pentax FA20/2.8 - 10 in 9 groups
Canon 20/2.8 - 11 in 9 groups
Nikon 20/2.8 AIS or D-AF - 12 in 9 groups
Sigma 20/1.8 - 13 in 11 groups

The Sigma certainly has more lens elements in more groups and could  
therefore have more losses through absorbtion, but I don't know just  
how relevant that is. They're all pretty close, really, and they're  
all fairly complex designs. It's a faster lens than the other three  
and faster lenses usually do give up contrast and resolution compared  
against slower designs of similar quality.

Godfrey

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Re: SV: 21mm limitted is a jewel ...

2006-07-19 Thread Cotty
On 19/7/06, P. J. Alling, discombobulated, unleashed:

You've been shooting digital too long, that's a window screen...

I knew someone would bite and it was a fifty/fifty chance it would be
you Peter ;-)

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SV: 21mm limitted is a jewel ...

2006-07-18 Thread Jens Bladt
... h. I thought I had all the Limited's (31-43-77). Now there's one
more to buy. Must be grat for panoramas ;-)
Regards
Jens Bladt
http://www.jensbladt.dk
+45 56 63 77 11
+45 23 43 85 77
Skype: jensbladt248

-Oprindelig meddelelse-
Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] vegne af Jan van
Wijk
Sendt: 18. juli 2006 14:25
Til: Pentax discussion forum
Emne: 21mm limitted is a jewel ...


Just got this one in today.

All I can say it is a real limitted, same style,
same look and feel, and comes with the
same type of leather pouch.

It is much less of a 'pancake' than the 40mm is,
actually resembles the 43 limitted more.

Hood and cap are perfect too, the hood
uses some kind of smart bayonet mount :-)

Some images taken of the 21mm on the *istD:

http://www.dfsee.com/gallery/pentax.php


Regards, JvW


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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Ryan Brooks

 Some images taken of the 21mm on the *istD:

   http://www.dfsee.com/gallery/pentax.php
   
Anything through instead of on ?:-)

-Ryan

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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Jan van Wijk
Hi Ryan,

On Tue, 18 Jul 2006 11:03:11 -0500, Ryan Brooks wrote:

 Some images taken of the 21mm on the *istD:

  http://www.dfsee.com/gallery/pentax.php
   
Anything through instead of on ?:-)

Nothing worth showing yet :-)

I made a few of my home intteriour, and will be taking the lens 
on a trip tomorrow, will probably do some landscapes ...

Regards, JvW

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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Adam Maas
2 more, the 40mm DA limited and the new 21mm. And a 70mm f2.4 DA Limited 
will arrive this fall.

You've got the full set of FA Limiteds.

-Adam


Jens Bladt wrote:
 ... h. I thought I had all the Limited's (31-43-77). Now there's one
 more to buy. Must be grat for panoramas ;-)
 Regards
 Jens Bladt
 http://www.jensbladt.dk
 +45 56 63 77 11
 +45 23 43 85 77
 Skype: jensbladt248
 
 -Oprindelig meddelelse-
 Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] vegne af Jan van
 Wijk
 Sendt: 18. juli 2006 14:25
 Til: Pentax discussion forum
 Emne: 21mm limitted is a jewel ...
 
 
 Just got this one in today.
 
 All I can say it is a real limitted, same style,
 same look and feel, and comes with the
 same type of leather pouch.
 
 It is much less of a 'pancake' than the 40mm is,
 actually resembles the 43 limitted more.
 
 Hood and cap are perfect too, the hood
 uses some kind of smart bayonet mount :-)
 
 Some images taken of the 21mm on the *istD:
 
   http://www.dfsee.com/gallery/pentax.php
 
 
 Regards, JvW
 
 
 --
 Jan van Wijk;   http://www.dfsee.com/gallery
 
 
 
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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread P. J. Alling
It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that 
great for panoramas.  Still it looks like nice wide angle lens, too bad 
it doesn't have an aperture ring.

Jens Bladt wrote:

... h. I thought I had all the Limited's (31-43-77). Now there's one
more to buy. Must be grat for panoramas ;-)
Regards
Jens Bladt
http://www.jensbladt.dk
+45 56 63 77 11
+45 23 43 85 77
Skype: jensbladt248

-Oprindelig meddelelse-
Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] vegne af Jan van
Wijk
Sendt: 18. juli 2006 14:25
Til: Pentax discussion forum
Emne: 21mm limitted is a jewel ...


Just got this one in today.

All I can say it is a real limitted, same style,
same look and feel, and comes with the
same type of leather pouch.

It is much less of a 'pancake' than the 40mm is,
actually resembles the 43 limitted more.

Hood and cap are perfect too, the hood
uses some kind of smart bayonet mount :-)

Some images taken of the 21mm on the *istD:

   http://www.dfsee.com/gallery/pentax.php


Regards, JvW


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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Mark Roberts
P. J. Alling wrote:

It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that 
great for panoramas.  Still it looks like nice wide angle lens, too bad 
it doesn't have an aperture ring.

The lack of an aperture ring doesn't bother me as much as the lack of
speed. f/3.2 is just too slow for me to get very excited about.
Certainly not excited enough to pay Limited prices.
 
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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread P. J. Alling
There is that.  Personally I think I'd prefer the FA 20mm f2.8.

Mark Roberts wrote:

P. J. Alling wrote:

  

It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that 
great for panoramas.  Still it looks like nice wide angle lens, too bad 
it doesn't have an aperture ring.



The lack of an aperture ring doesn't bother me as much as the lack of
speed. f/3.2 is just too slow for me to get very excited about.
Certainly not excited enough to pay Limited prices.
 
  



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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Adam Maas
Mark Roberts wrote:
 P. J. Alling wrote:
 
 
It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that 
great for panoramas.  Still it looks like nice wide angle lens, too bad 
it doesn't have an aperture ring.
 
 
 The lack of an aperture ring doesn't bother me as much as the lack of
 speed. f/3.2 is just too slow for me to get very excited about.
 Certainly not excited enough to pay Limited prices.
  

I've been thinking about that, and while I certainly would prefer a 
faster lens, 1/3 of a stop or so isn't all that much, especially given 
the small size of the lens.

-Adam


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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Godfrey DiGiorgi

On Jul 18, 2006, at 11:36 AM, Mark Roberts wrote:

 P. J. Alling wrote:

 It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not  
 that
 great for panoramas.  Still it looks like nice wide angle lens,  
 too bad
 it doesn't have an aperture ring.

 The lack of an aperture ring doesn't bother me as much as the lack of
 speed. f/3.2 is just too slow for me to get very excited about.
 Certainly not excited enough to pay Limited prices.

The FA20 is $500 too (BH prices). Speed isn't everything, it is only  
~0.3EV slower than the FA20/2.8, but I agree that $480 (BH current  
price) sounds a bit high for an f/3.2 lens.

Godfrey

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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Mark Roberts
Adam Maas wrote:

Mark Roberts wrote:
 P. J. Alling wrote:
 
It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that 
great for panoramas.  Still it looks like nice wide angle lens, too bad 
it doesn't have an aperture ring.
 
 
 The lack of an aperture ring doesn't bother me as much as the lack of
 speed. f/3.2 is just too slow for me to get very excited about.
 Certainly not excited enough to pay Limited prices.

I've been thinking about that, and while I certainly would prefer a 
faster lens, 1/3 of a stop or so isn't all that much

My other Limiteds (43, 31, 77) are all f/1.9 or faster. That's a lot
more than a third of a stop! F/2.0 and under is Limited territory for
me. I'd *consider* the upcoming  70/2.4 if it were under $500 (and if
I didn't already have the 77!)
 
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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Adam Maas
Mark Roberts wrote:
 Adam Maas wrote:
 
 
Mark Roberts wrote:

P. J. Alling wrote:


It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that 
great for panoramas.  Still it looks like nice wide angle lens, too bad 
it doesn't have an aperture ring.


The lack of an aperture ring doesn't bother me as much as the lack of
speed. f/3.2 is just too slow for me to get very excited about.
Certainly not excited enough to pay Limited prices.

I've been thinking about that, and while I certainly would prefer a 
faster lens, 1/3 of a stop or so isn't all that much
 
 
 My other Limiteds (43, 31, 77) are all f/1.9 or faster. That's a lot
 more than a third of a stop! F/2.0 and under is Limited territory for
 me. I'd *consider* the upcoming  70/2.4 if it were under $500 (and if
 I didn't already have the 77!)
  

But it's just 1/3 of a stop from the most similar lens, the FA 20mm 
f2.8. And in a far smaller package. It's also only 1/3 of a stop slower 
than the only other DA Limited pancake, the 40mm f2.8.

-Adam


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RE: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Jens Bladt
I use the old A 2.8 20mm for panoramas.It's a great lens. Look how well it
performs wide open:
http://www.flickr.com/photos/bladt/2695269/in/set-68002/
I bet the FA has appr. the same formulas ?
Regards

Jens Bladt
http://www.jensbladt.dk
+45 56 63 77 11
+45 23 43 85 77
Skype: jensbladt248

-Oprindelig meddelelse-
Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] vegne af P. J.
Alling
Sendt: 18. juli 2006 20:52
Til: Pentax-Discuss Mail List
Emne: Re: SV: 21mm limitted is a jewel ...


There is that.  Personally I think I'd prefer the FA 20mm f2.8.

Mark Roberts wrote:

P. J. Alling wrote:



It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that
great for panoramas.  Still it looks like nice wide angle lens, too bad
it doesn't have an aperture ring.



The lack of an aperture ring doesn't bother me as much as the lack of
speed. f/3.2 is just too slow for me to get very excited about.
Certainly not excited enough to pay Limited prices.





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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Mark Roberts
Adam Maas wrote:


But it's just 1/3 of a stop from the most similar lens, the FA 20mm 
f2.8. And in a far smaller package. It's also only 1/3 of a stop slower 
than the only other DA Limited pancake, the 40mm f2.8.

Still too slow for me.
 
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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread frank theriault
On 7/18/06, Mark Roberts [EMAIL PROTECTED] wrote:

 The lack of an aperture ring doesn't bother me as much as the lack of
 speed. f/3.2 is just too slow for me to get very excited about.
 Certainly not excited enough to pay Limited prices.

Were I a digital guy, putting the 21mm pancake on a Pentax digital
body would make a great package for street shooting, both in terms of
total compactness and focal length.  For that purpose, I rarely shoot
much wider open then f4.0 anyway, usually much smaller.  f3.2 would
suite me just fine for most of my purposes.

However at this time, it's all moot.

cheers,
frank


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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Adam Maas
Mark Roberts wrote:
 Adam Maas wrote:
 
 
 
But it's just 1/3 of a stop from the most similar lens, the FA 20mm 
f2.8. And in a far smaller package. It's also only 1/3 of a stop slower 
than the only other DA Limited pancake, the 40mm f2.8.
 
 
 Still too slow for me.
  

Well, Sigma does make a 20mm f1.8 just for folks like you.

But it's bigger than the DS.

-Adam


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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Thibouille
IMO if Pentax still prodoces FA Limited (well at least it is in their
catalog) when they also sell DA Limited is obvious: DA Limited arent's
supposed to replace FA Limited.

FA LImited are Limited because of their quality and speed.
DA Limited are Limited because of their quality, size and speed.

Obviously Pentax wanna show what they can do producing very compact lenses.

Pentax still could introduce of so they want other Limityed lenses
(even DA ones) which are not Limited because of their pancakes style
but ony by their speed and quality. Who knows?
As long as Pentax doesn't stop selling FA Limited nobody should state
the DA ones replace the FA ones.

Also, about the price of the 21 Limited: you're paying for the size!
If it doesn't suit you (which is of course you right) you can disagree
but it is a Small and good (it seems from the first impressions) 21mm.
Could have been F/4. We are lucky enough it is F/3.2.

Just my 2 cents of course.

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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread DagT
Den 18. jul. 2006 kl. 23.09 skrev frank theriault:

 On 7/18/06, Mark Roberts [EMAIL PROTECTED] wrote:

 The lack of an aperture ring doesn't bother me as much as the lack of
 speed. f/3.2 is just too slow for me to get very excited about.
 Certainly not excited enough to pay Limited prices.

 Were I a digital guy, putting the 21mm pancake on a Pentax digital
 body would make a great package for street shooting, both in terms of
 total compactness and focal length.  For that purpose, I rarely shoot
 much wider open then f4.0 anyway, usually much smaller.  f3.2 would
 suite me just fine for most of my purposes.

I´m buying the 21 because of its size, and because I hope it is  
better with respect to distortion.

I would love to have a 20mm 2.0, but that is not a possibility right  
now (Sigma has far too much quality variation for me to put any money  
close to it).  Also, a limited lens like that  will be very expensive.

DagT
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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Mark Roberts
Adam Maas wrote:

Mark Roberts wrote:
 Adam Maas wrote:
 
But it's just 1/3 of a stop from the most similar lens, the FA 20mm 
f2.8. And in a far smaller package. It's also only 1/3 of a stop slower 
than the only other DA Limited pancake, the 40mm f2.8.
 
 Still too slow for me.

Well, Sigma does make a 20mm f1.8 just for folks like you.

Nah. I'll stick with my Pentax glass.
I'm really pretty happy with what I have for wide angle primes.
I realize that it's unfashionable to be happy with the lenses you
already own, but that's just the way it is. :)
 
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412-687-2835

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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Thibouille
No, you're just not bitten (yet? or no more?) by LBA when others are.
Be happy ;)

2006/7/19, Mark Roberts [EMAIL PROTECTED]:
 Adam Maas wrote:

 Mark Roberts wrote:
  Adam Maas wrote:
 
 But it's just 1/3 of a stop from the most similar lens, the FA 20mm
 f2.8. And in a far smaller package. It's also only 1/3 of a stop slower
 than the only other DA Limited pancake, the 40mm f2.8.
 
  Still too slow for me.
 
 Well, Sigma does make a 20mm f1.8 just for folks like you.

 Nah. I'll stick with my Pentax glass.
 I'm really pretty happy with what I have for wide angle primes.
 I realize that it's unfashionable to be happy with the lenses you
 already own, but that's just the way it is. :)

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 www.robertstech.com
 412-687-2835

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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Godfrey DiGiorgi
The DA40mm f/2.8 Limited is another one you don't have ...

Godfrey

On Jul 18, 2006, at 8:59 AM, Jens Bladt wrote:

 ... h. I thought I had all the Limited's (31-43-77). Now  
 there's one
 more to buy. Must be grat for panoramas ;-)



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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread David Savage
At 02:36 AM 19/07/2006, Mark Roberts wrote:
P. J. Alling wrote:

 It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that
 great for panoramas.  Still it looks like nice wide angle lens, too bad
 it doesn't have an aperture ring.

The lack of an aperture ring doesn't bother me as much as the lack of
speed. f/3.2 is just too slow for me to get very excited about.
Certainly not excited enough to pay Limited prices.



Ditto.

Dave


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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Aaron Reynolds
Dunno, the DA Limiteds remind me a lot of the M series.  I'm really impressed 
with the build and size, and of course the clutch thingamajig.

The FA Limiteds are gorgeous, but I'd say the DA ones are even nicer.

I don't really think I'll shoot much or any 35mm film from now on, so the lack 
of an aperture ring and the digital-only coverage don't bother me in the 
slightest.  Hell, I hadn't shot any 35mm film in nearly a year BEFORE I bought 
the DS2.  I'm glad I never got around to selling most of my 35mm lenses.

-Aaron

-Original Message-

From:  David Savage [EMAIL PROTECTED]
Subj:  Re: SV: 21mm limitted is a jewel ...
Date:  Tue Jul 18, 2006 9:13 pm
Size:  561 bytes
To:  Pentax-Discuss Mail List pdml@pdml.net

At 02:36 AM 19/07/2006, Mark Roberts wrote:
P. J. Alling wrote:

 It's a DA limited, at 21mm its more like a 28mm on 35mm film.  Not that
 great for panoramas.  Still it looks like nice wide angle lens, too bad
 it doesn't have an aperture ring.

The lack of an aperture ring doesn't bother me as much as the lack of
speed. f/3.2 is just too slow for me to get very excited about.
Certainly not excited enough to pay Limited prices.



Ditto.

Dave


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Re: SV: 21mm limitted is a jewel ...

2006-07-18 Thread Godfrey DiGiorgi

On Jul 18, 2006, at 3:28 PM, Mark Roberts wrote:

 I'm really pretty happy with what I have for wide angle primes.
 I realize that it's unfashionable to be happy with the lenses you
 already own, but that's just the way it is.

:-)

I continue to be tickled by the notion of either the FA28/2.8 or  
DA21/3.2, but truthfully the FA20-35, DA14 and FA35 together do quite  
nicely by me.

Godfrey

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