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From: Margus Männik [EMAIL PROTECTED]
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Sunday, October 08, 2006 10:53 PM
Subject: Re: D-Xenogon 35
OK, can anyone explain more closely what is Ghostless Coating? Further
development of SMC or just a marketing hype?
BR, Margus
Steve
OK, can anyone explain more closely what is Ghostless Coating? Further
development of SMC or just a marketing hype?
BR, Margus
Steve Jolly wrote:
SMC was revolutionary 30-odd years ago, but these days anyone with the
right software and a basic understanding of optics can design high
On Thu, 5 Oct 2006, Digital Image Studio wrote:
Lens coating isn't now the secret it was during WWII, flare is
minimised by good lens coatings but I overall flare resistance is a
function of coatings, optical design and internal barrel AR coatings,
baffling and of course lens shading.
And
On 05.10.2006, at 11:31 , Kostas Kavoussanakis wrote:
And the number of elements?
And strength and angle of light source :-)))
Cheers,
Sylwek
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On 05/10/06, Sylwester Pietrzyk [EMAIL PROTECTED] wrote:
On 05.10.2006, at 11:31 , Kostas Kavoussanakis wrote:
And the number of elements?
And strength and angle of light source :-)))
Yes, but mainly lens coatings and the surface treatments of internal
spacing elements etc.
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Rob Studdert
On 05/10/06, Kostas Kavoussanakis [EMAIL PROTECTED] wrote:
On Thu, 5 Oct 2006, Digital Image Studio wrote:
Lens coating isn't now the secret it was during WWII, flare is
minimised by good lens coatings but I overall flare resistance is a
function of coatings, optical design and internal
On 03.10.2006, at 17:16 , Boris Liberman wrote:
Which, just by the way, means that people who shoot other brands will
have easy access to Pentax lenses *and coatings*.
Other brands won't have weather sealings and ultrasonic AF in these
new Tokinas ;-) And Tokina will have their own coatings
Hi!
Which, just by the way, means that people who shoot other brands will
have easy access to Pentax lenses *and coatings*.
Other brands won't have weather sealings and ultrasonic AF in these
new Tokinas ;-) And Tokina will have their own coatings (they have
used glass and coatings from
Lots of companies use Hoya glass, even Leica. I'm sure Pentax is using
Hoya glass where appropriate.
Shel
[Original Message]
From: Sylwester Pietrzyk
Other brands won't have weather sealings and ultrasonic AF in these
new Tokinas ;-) And Tokina will have their own coatings (they have
On 04.10.2006, at 12:56 , Shel Belinkoff wrote:
Lots of companies use Hoya glass, even Leica. I'm sure Pentax is
using
Hoya glass where appropriate.
But SMC is Pentax own, isn't it? ;-)
Cheers,
Sylwek
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On 04/10/06, Sylwester Pietrzyk [EMAIL PROTECTED] wrote:
On 04.10.2006, at 12:56 , Shel Belinkoff wrote:
Lots of companies use Hoya glass, even Leica. I'm sure Pentax is
using
Hoya glass where appropriate.
But SMC is Pentax own, isn't it? ;-)
Practically the same as the CZ T* coatings I
Supposedly, although there has been discussion that it and the Zeiss T*
coatings are the same or at least quite similar. I read more than once
that Pentax and Zeiss had (and I can't recall exactly what it was) a
relationship in developing their coatings. It's quite possible that over
the years
Yes ... certainly at one time, but as I noted elsewhere, they may have
diverged at some point.
A few years ago Mark Dalal and I compared his CZ T* 85/1.4 with my Pentax
A* 85/1.4. They were much more alike than different.
Shel
[Original Message]
From: Digital Image Studio
But SMC is
Sylwester Pietrzyk wrote:
On 04.10.2006, at 12:56 , Shel Belinkoff wrote:
Lots of companies use Hoya glass, even Leica. I'm sure Pentax is
using
Hoya glass where appropriate.
But SMC is Pentax own, isn't it? ;-)
Cheers,
Sylwek
Yes, but SMC isn't glass, it's coatings. Pentax does
Sylwester Pietrzyk wrote:
On 04.10.2006, at 12:56 , Shel Belinkoff wrote:
Lots of companies use Hoya glass, even Leica. I'm sure Pentax is
using
Hoya glass where appropriate.
But SMC is Pentax own, isn't it? ;-)
SMC was revolutionary 30-odd years ago, but these days anyone with the
But we were talking about coatings :-)
On 04.10.2006, at 14:35 , Adam Maas wrote:
Yes, but SMC isn't glass, it's coatings. Pentax does its own coating,
they buy their glass elsewhere (likely from Hoya).
Cheers,
Sylwek
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On 04.10.2006, at 14:33 , Digital Image Studio wrote:
Practically the same as the CZ T* coatings I believe (and from my
experience)
According to various sources Pentax and Zeiss codeveloped SMC and T*
coatings, so that's hardly surprise :-)
Cheers,
Sylwek
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In a message dated 10/4/2006 6:07:00 AM Pacific Daylight Time,
[EMAIL PROTECTED] writes:
SMC was revolutionary 30-odd years ago, but these days anyone with the
right software and a basic understanding of optics can design high
performance multi-layer optical coatings. SMC is just a brand.
[EMAIL PROTECTED] wrote:
Not quite true. Canon lenses will flare in situations Pentax lenses won't.
Not all Pentax lenses flare less, but a lot do. It wasn't just hype.
Ah, now just because any idiot can design coatings as good as SMC, it
doesn't mean that they do. ;-)
S
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PDML
I was _stunned_ by the amount of flare produced by one of my Leica lenses.
In the same situation there was no flare from the Pentax glass. Granted,
the Pentax glass had an early coating (K-mount) and the Leica was quite a
bit newer LOL
Shel
[Original Message]
From: [EMAIL PROTECTED]
Not
[EMAIL PROTECTED] wrote:
Not quite true. Canon lenses will flare in situations Pentax lenses won't.
Not all Pentax lenses flare less, but a lot do. It wasn't just hype.
Ah, now just because any idiot can design coatings as good as SMC, it
doesn't mean that they do. ;-)
S
--
PDML
On 04.10.2006, at 16:42 , [EMAIL PROTECTED] wrote:
Not quite true. Canon lenses will flare in situations Pentax lenses
won't.
Not all Pentax lenses flare less, but a lot do. It wasn't just hype.
Exactly the same situation is with modern Minolta lenses. My friend
who had FA 50/1.7 met his
Or maybe kit means that not just any idiot can design coatings as good.
Just because there's some software out there that helps design such
coatings doesn't mean that it comes with 30+ years of experience with
coatings, collaboration with other great lens makers, and a feel for
quality optics and
On 05/10/06, Shel Belinkoff [EMAIL PROTECTED] wrote:
Or maybe kit means that not just any idiot can design coatings as good.
Just because there's some software out there that helps design such
coatings doesn't mean that it comes with 30+ years of experience with
coatings, collaboration with
Mmm I don't think that this is what Ken told us some time ago.
I thought that in any cas (whetever which one came with the optical
design) both brands were designing their barrels by themselves.
2006/10/3, Adam Maas [EMAIL PROTECTED]:
Joseph Tainter wrote:
Also, all three new Pentax DA* lenses
As Tokina guys said - those lenses are solely designed by Pentax,
optical elements and coatings will be 100% identical for both Samsung
and Pentax. Tokina lenses will have the very same optical elements (and
coatings), but NOT Pentax electronics. Nowadays those chips are quite
important...
Which, just by the way, means that people who shoot other brands will
have easy access to Pentax lenses *and coatings*.
Pentax to the masses ;-).
On 10/3/06, Margus Männik [EMAIL PROTECTED] wrote:
As Tokina guys said - those lenses are solely designed by Pentax,
optical elements and coatings
Only one other brand is using the K mount these days. Not like the
glory days of the past when every small manufacture rather than
developing their own mount would adopt the K mount.
Boris Liberman wrote:
Which, just by the way, means that people who shoot other brands will
have easy access
So, it's definitely Pentax FA35/2. Aperture ring,
Even the lens coatings should be the same (i.e same as P-SMC).
Also, all three new Pentax DA* lenses will be produced under D-Xenon
brand too. Designed by Pentax, manufactured by Tokina, sponsored by
Samsung :)
BR, Margus
--
PDML
Obviously, it is the closest they can have to a normal fast, not too
expensive prime.
It's a good thing--the FA35 is one of the best Pentax lenses ever.
Good to see it's still being made.
j
On 10/2/06, Margus Männik [EMAIL PROTECTED] wrote:
So, it's definitely Pentax FA35/2. Aperture ring,
On 03/10/06, Juan Buhler [EMAIL PROTECTED] wrote:
Obviously, it is the closest they can have to a normal fast, not too
expensive prime.
It's a good thing--the FA35 is one of the best Pentax lenses ever.
Good to see it's still being made.
Maybe we'll see more of the old favourites as
Also, all three new Pentax DA* lenses will be produced under D-Xenon
brand too. Designed by Pentax, manufactured by Tokina, sponsored by
Samsung :)
BR, Margus
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So the S-K versions of these lenses will be made for Samsung by Tokina?
Is this the case for all S-K lenses?
Margus, are you
Joseph Tainter wrote:
Also, all three new Pentax DA* lenses will be produced under D-Xenon
brand too. Designed by Pentax, manufactured by Tokina, sponsored by
Samsung :)
BR, Margus
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So the S-K versions of these lenses will be made for Samsung by Tokina?
Is this the case for all
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