Sorry to ask... but what does the 1/250th of a second with the speed at
wich the shutter curtains open and close? I always understood the
curtains moved at the same speed, and the actual exposure time was
controlled by the difference in the their release - from a very short
difference to a few
camera, but one of these days I may be looking for one.
LF
John Francis escreveu:
On Thu, May 21, 2009 at 08:51:16PM -0600, William Robb wrote:
- Original Message -
From: Bob Sullivan
Subject: Re: Oh another K-7 thread...
timber,
The rest of us have no idea where you are looking
Luiz,
You are correct as to how the shutter curtains work, in hindsight my
math is in fact off here and should be ignored. Shutter blade speed is
higher than what I computed.
-Adam
On Mon, May 25, 2009 at 10:12 AM, Luiz Felipe
luiz.fel...@techmit.com.br wrote:
Sorry to ask... but what does the
Peter,
Don't base your decision on photographs posted on the web, even if
they are on the Pentax website. Were those photos taken by a talented
photographer or by an engineer who just stepped out in his lunchbreak
to test this thingy he had spent 12 months designing the circuitry
for?
I have
On Thu, May 21, 2009 at 6:28 PM, Thibouille pentaxl...@gmail.com wrote:
I wonder how one can draw such conclusions:
* without trying the camera
* seing anything else than sample (usually uninteresting whatever the
brand) and a picture (of the girl) from internal Jpeg with sharpness
set a -2,
await an explanation for VW.
- Original Message -
From: William Robb war...@gmail.com
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Thursday, May 21, 2009 10:48 PM
Subject: Re: Oh another K-7 thread...
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7
- Original Message -
From: John Francis
Subject: Re: Oh another K-7 thread...
Looks better than pretty darned good to me - unless there are some
really strong negative reports from the GFM crowd I'll be buying one.
I'm trying very hard to not turn into a fanboy over this camera
- Original Message -
From: Christine Aguila
Subject: Re: Oh another K-7 thread...
Well, William, what does the VW stand for? Cheers, Christine
Value Reductions
Except I talk like Elmer Fudd, so it comes out sounding like Value
Weductions.
--
PDML Pentax-Discuss Mail List
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread...
I too await an explanation for VW.
You'll be sorry.
VW
--
PDML Pentax-Discuss Mail List
PDML@pdml.net
http://pdml.net/mailman/listinfo/pdml_pdml.net
to UNSUBSCRIBE from the PDML, please visit the link
me
one real soon. Right now I'm kinda busy fixing the light leaks in my Zenit
E..
Original Message - From: Paul Stenquist pnstenqu...@comcast.net
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Thursday, May 21, 2009 8:09 PM
Subject: Re: Oh another K-7 thread...
You're missing
To: Pentax-Discuss Mail List
Subject: Re: Oh another K-7 thread...
On Thu, May 21, 2009 at 08:54:29PM -0400, paul stenquist wrote:
The difference between 1/180th and 1/250th flash synch is substantial
when
shooting a brightly backlit subject in bright daylight.
A lot can happen in 0.0016
It's called High Speed sync.
Works with PUF and external wired.
On May 21, 2009, at 17:54 , paul stenquist wrote:
The difference between 1/180th and 1/250th flash synch is
substantial when shooting a brightly backlit subject in bright
daylight.
Paul
On May 21, 2009, at 6:28 PM, Thibouille
This is catastrophic! My retirement plans were entirley
based on selling
backlit protraits of hummingbirds to microstock
agencies!!!
Mark!
[...]
Weren't you going to go back to lurking?
VW
Stain!
--
PDML Pentax-Discuss Mail List
PDML@pdml.net
He's turning into a beetle.
Well, William, what does the VW stand for? Cheers, Christine
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread...
Yes, I was going to slip quietly away, but I made the
mistake of looking
at one last message
Peter,
I just wanted to add that Pentax has a well-established tradition of putting
crap pictures as quality samples in their Japanese website. I'm not
worried at all by seeing that stuff and I'm confident the K-7 will give a
much much higher IQ when properly handled.
Dario
- Original
John Francis jo...@panix.com wrote:
Or using the flash for catchlights, and wanting to use 1/250
for other reasons (such as, say, photographing cars in motion).
High-speed flash sync probably works fine for that, though.
Does that produce multiple (or different in some other way)
.
- Original Message -
From: William Robb war...@gmail.com
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Friday, May 22, 2009 12:48 AM
Subject: Re: Oh another K-7 thread...
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread
Imaging Resource preview updated with Ruggedness / Build Quality;
Shake Reduction / Image Shift System.
(including eletronic level functions etc.)
http://www.imaging-resource.com/PRODS/K7/K7A.HTM
--
Thibault Massart aka Thibouille
--
Photo: K10D,Z1,SuperA,KX,MX, P30t and
Every half stop is critical when you're mixing flash and daylight.
I've shot outdoor wedding ceremonies that were under a gazebo with a
lit background. I need the higher shutter speed both to open the stop
a bit and keep the shutter speed high enough for can't miss
handholding. A faster
Paul Stenquist wrote:
Every half stop is critical when you're mixing flash and daylight. I've
shot outdoor wedding ceremonies that were under a gazebo with a lit
background. I need the higher shutter speed both to open the stop a bit
and keep the shutter speed high enough for can't miss
But you lose much of the flash output. I use it all the time. It's a
poor substitute for real high speed synch.
Paul
On May 22, 2009, at 2:50 AM, Joseph McAllister wrote:
It's called High Speed sync.
Works with PUF and external wired.
On May 21, 2009, at 17:54 , paul stenquist wrote:
The
Every half stop is critical when you're mixing flash and daylight. I've
shot outdoor wedding ceremonies that were under a gazebo with a lit
background. I need the higher shutter speed both to open the stop a bit
and keep the shutter speed high enough for can't miss handholding. A
faster
Because you get only partial flash output, the catchlights and the
illumination are minimal with artificial high-speed synch. Non-
existent in bright light at a distance of more than five or six feet.
I use it all the time, but it's a poor substitute for the real thing.
Paul
On May 22, 2009,
You get only minimal flash output. From twenty feet in daylight, it's
zilch.
Paul
On May 22, 2009, at 7:25 AM, Dario Bonazza wrote:
Paul Stenquist wrote:
Every half stop is critical when you're mixing flash and daylight.
I've shot outdoor wedding ceremonies that were under a gazebo with
paul stenquist wrote:
Every half stop is critical when you're mixing flash and daylight.
I've shot outdoor wedding ceremonies that were under a gazebo with a
lit background. I need the higher shutter speed both to open the stop
a bit and keep the shutter speed high enough for can't miss
On Fri, May 22, 2009 at 07:49:36AM -0400, paul stenquist wrote:
Because you get only partial flash output, the catchlights and the
illumination are minimal with artificial high-speed synch. Non-existent in
bright light at a distance of more than five or six feet. I use it all the
time, but
war...@gmail.com
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Friday, May 22, 2009 12:48 AM
Subject: Re: Oh another K-7 thread...
- Original Message - From: John Poirier
Subject: Re: Oh another K-7 thread...
Yes, I was going to slip quietly away, but I made the mistake
Subject: Re: Oh another K-7 thread...
But you lose much of the flash output. I use it all the time. It's a
poor substitute for real high speed synch.
Paul
On May 22, 2009, at 2:50 AM, Joseph McAllister wrote:
It's called High Speed sync.
Works with PUF and external wired.
On May 21, 2009, at 17
- Original Message -
From: paul stenquist
Subject: Re: Oh another K-7 thread...
Every half stop is critical when you're mixing flash and daylight. I've
shot outdoor wedding ceremonies that were under a gazebo with a lit
background. I need the higher shutter speed both to open
- Original Message -
From: Dario Bonazza
Subject: Re: Oh another K-7 thread...
Every half stop is critical when you're mixing flash and daylight. I've
shot outdoor wedding ceremonies that were under a gazebo with a lit
background. I need the higher shutter speed both to open
-7 thread...
- Original Message -
From: paul stenquist
Subject: Re: Oh another K-7 thread...
Every half stop is critical when you're mixing flash and daylight.
I've
shot outdoor wedding ceremonies that were under a gazebo with a lit
background. I need the higher shutter speed
Jefferson
-Original Message-
From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of
paul stenquist
Sent: Friday, May 22, 2009 7:46 AM
To: Pentax-Discuss Mail List
Subject: Re: Oh another K-7 thread...
But you lose much of the flash output. I use it all the time. It's
- Original Message -
From: Adam Maas
Subject: Re: Oh another K-7 thread...
Define the old days ;-)
My FM2n and FE2 (both circa 1983) and my F801s (circa 1991) all have
1/250 sync.
Heck, my old Nikkormat FTn, which dated from the late 1960s had a 1/125
second sync speed.
William
I dont recall Pentax going faster than 1/60 for sync speeds
until the K mount bodies which were all 1975 or later.
I think the difference was the cloth vs metal shutters. The
cloth shutters were slower at full opening required for sync.
JC O'Connell (mailto:hifis...@gate.net)
Honesty is the first
- Original Message -
From: JC OConnell
Subject: RE: Oh another K-7 thread...
I dont recall Pentax going faster than 1/60 for sync speeds
until the K mount bodies which were all 1975 or later.
I think the difference was the cloth vs metal shutters. The
cloth shutters were slower
Volkswagen of course...
Christine Aguila wrote:
Well, William, what does the VW stand for? Cheers, Christine
- Original Message - From: William Robb war...@gmail.com
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Friday, May 22, 2009 12:48 AM
Subject: Re: Oh another K-7 thread
On Fri, May 22, 2009 at 12:14:59AM -0600, William Robb wrote:
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread...
I too await an explanation for VW.
You'll be sorry.
VW
I didn't think VW stood for much of anything ..
--
PDML Pentax-Discuss Mail
On Fri, May 22, 2009 at 09:02:13AM +0100, mike wilson wrote:
John Francis jo...@panix.com wrote:
Or using the flash for catchlights, and wanting to use 1/250
for other reasons (such as, say, photographing cars in motion).
High-speed flash sync probably works fine for that,
of the ME was closer
to 1/90 than 1/100.
On Fri, May 22, 2009 at 08:50:11AM -0600, William Robb wrote:
- Original Message -
From: JC OConnell
Subject: RE: Oh another K-7 thread...
I dont recall Pentax going faster than 1/60 for sync speeds
until the K mount bodies which
, May 22, 2009 7:46 AM
To: Pentax-Discuss Mail List
Subject: Re: Oh another K-7 thread...
But you lose much of the flash output. I use it all the time. It's a
poor substitute for real high speed synch.
Paul
On May 22, 2009, at 2:50 AM, Joseph McAllister wrote:
It's called High Speed sync
of the ME was closer
to 1/90 than 1/100.
On Fri, May 22, 2009 at 08:50:11AM -0600, William Robb wrote:
- Original Message -
From: JC OConnell
Subject: RE: Oh another K-7 thread...
I dont recall Pentax going faster than 1/60 for sync speeds
until the K mount bodies which were all
Looks like you are in the market for a MF camera with leaf shutters
then to meet your goals.
Will you be selling your lenses for 35mm? Anything interesting?
On May 22, 2009, at 04:49 , paul stenquist wrote:
Because you get only partial flash output, the catchlights and the
illumination are
another K-7 thread...
Define the old days ;-)
My FM2n and FE2 (both circa 1983) and my F801s (circa 1991) all have
1/250 sync.
Heck, my old Nikkormat FTn, which dated from the late 1960s had a
1/125
second sync speed.
William Robb
Joseph McAllister
pentax...@mac.com
http
, but I'd be glad to help with the science, Pentax
Joe
On May 22, 2009, at 07:35 , William Robb wrote:
- Original Message -
From: Adam Maas
Subject: Re: Oh another K-7 thread...
Define the old days ;-)
My FM2n and FE2 (both circa 1983) and my F801s (circa 1991) all have
1/250 sync
Valuation Willie
On May 22, 2009, at 09:45 , John Francis wrote:
On Fri, May 22, 2009 at 12:14:59AM -0600, William Robb wrote:
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread...
I too await an explanation for VW.
You'll be sorry.
VW
I didn't think VW
Ok - so whats the significance of Value Reductions ?
Kenneth Waller
http://www.tinyurl.com/272u2f
- Original Message -
From: William Robb war...@gmail.com
Subject: Re: Oh another K-7 thread...
- Original Message -
From: Christine Aguila
Subject: Re: Oh another K-7
mike wilson wrote:
Christine Aguila cagu...@earthlink.net wrote:
Well, William, what does the VW stand for? Cheers, Christine
There was a review of the PDML annual that was run through the same translator
as the K7 stuff.
Mark came out as Stain and Bill came out as Valuation, amongst
the current is
removed. Could even be combined with the low-pass filter glass.
No fee for the idea, but I'd be glad to help with the science,
Pentax
Joe
On May 22, 2009, at 07:35 , William Robb wrote:
- Original Message -
From: Adam Maas
Subject: Re: Oh another K-7 thread
Well, since you asked, shutter blade velocity is 6m/s at 1/250th. That
works out to about 13.5mph ;-)
-Adam
On Fri, May 22, 2009 at 4:26 PM, Joseph McAllister pentax...@mac.com wrote:
I was waiting for someone to argue my 10,000 mph was incorrect for for
focal plane shutter velocity. It
fps (and
Shutter speeds down to 1 microsecond).
Those developments are coming to consumer cameras probably in the next 5 years.
Date: Fri, 22 May 2009 12:42:29 -0700
From: Joseph McAllister pentax...@mac.com
Subject: Re: Oh another K-7 thread...
Maybe some day they'll figure out how to get light
I didn't think VW stood for much of anything ..
Very Witty..
Kenneth Waller
http://www.tinyurl.com/272u2f
- Original Message -
From: John Francis jo...@panix.com
Subject: Re: Oh another K-7 thread...
On Fri, May 22, 2009 at 12:14:59AM -0600, William Robb wrote
Just to be clear and make some people think about judging from
pictures they dunno in which conditions they were taken,
Ned Bunnel posted the texte of the K-7 brochure which will come with
camera end of june.
Page 3, the pictures mode (Jpeg output) are bright, natural,
landscapen portrait,
On Fri, May 22, 2009 at 01:26:54PM -0700, Joseph McAllister wrote:
I was waiting for someone to argue my 10,000 mph was incorrect for for
focal plane shutter velocity. It probably is.
Well, let's look at that. Basically, the flash sync time can be taken
as the time it takes for the shutter
:
- Original Message -
From: Adam Maas
Subject: Re: Oh another K-7 thread...
Define the old days ;-)
My FM2n and FE2 (both circa 1983) and my F801s (circa 1991) all have
1/250 sync.
Heck, my old Nikkormat FTn, which dated from the late 1960s had a
1/125
second sync speed.
William Robb
Hell, I was just stunned by the concept of a hyper sonic shutter.
Adam Maas wrote:
Well, since you asked, shutter blade velocity is 6m/s at 1/250th. That
works out to about 13.5mph ;-)
-Adam
On Fri, May 22, 2009 at 4:26 PM, Joseph McAllister pentax...@mac.com wrote:
I was waiting for
Subject: Re: Oh another K-7 thread...
Maybe some day they'll figure out how to get light to travel faster,
or conversely get shutter curtains to zip across the focal plain
faster than 10,000 miles per hour. I'm opting for an optical glass
shutter that blocks light completely until hit with a current
I have a medium format with leaf shutter: the Pentax 6x7 and the 165/4
LS lens. High speed synch is why I bought that lens. But I can't
afford medium format digital at his time, and I sure as hell won't go
back to film. So I would prefer Pentax get with the program and
upgrade their synch
I wonder how one can draw such conclusions:
* without trying the camera
* seing anything else than sample (usually uninteresting whatever the
brand) and a picture (of the girl) from internal Jpeg with sharpness
set a -2, custom image settings set to portrait (!!)
* You didn't test AF and probably
Not conclusions, just feelings. I found very disappointing the sample
shots on Pentax' site. I remember the old D300 sample shots that were
shocking me and now seeing these shots to me it seems that the K-7 is
worse than the K20D. I am not saying K-7 is bad or good but most of the
all other
The enclosed link should help sell a few K7s !
Kenneth Waller
http://www.tinyurl.com/272u2f
- Original Message -
From: Thibouille pentaxl...@gmail.com
Subject: Re: Oh another K-7 thread...
I wonder how one can draw such conclusions:
* without trying the camera
* seing anything
The difference between 1/180th and 1/250th flash synch is substantial
when shooting a brightly backlit subject in bright daylight.
Paul
On May 21, 2009, at 6:28 PM, Thibouille wrote:
I wonder how one can draw such conclusions:
* without trying the camera
* seing anything else than sample
On Thu, May 21, 2009 at 08:54:29PM -0400, paul stenquist wrote:
The difference between 1/180th and 1/250th flash synch is substantial when
shooting a brightly backlit subject in bright daylight.
A lot can happen in 0.0016 seconds.
--
Matthew Miller mat...@mattdm.org
- Original Message -
From: Matthew Miller
Subject: Re: Oh another K-7 thread...
The difference between 1/180th and 1/250th flash synch is substantial
when
shooting a brightly backlit subject in bright daylight.
A lot can happen in 0.0016 seconds.
C'est what?
William Robb
It's not about what can happen of course. It's about getting your stop
and still being able to use fill.
Paul
On May 21, 2009, at 9:10 PM, William Robb wrote:
- Original Message -
From: Matthew Miller
Subject: Re: Oh another K-7 thread...
The difference between 1/180th and 1/250th
about getting your stop
and still being able to use fill.
Paul
On May 21, 2009, at 9:10 PM, William Robb wrote:
- Original Message -
From: Matthew Miller
Subject: Re: Oh another K-7 thread...
The difference between 1/180th and 1/250th flash synch is
substantial
when
Thibouille wrote:
I wonder how one can draw such conclusions:
What, you've never been to Ken R***'s web site?
--
Thanks,
DougF (KG4LMZ)
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PDML Pentax-Discuss Mail List
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to UNSUBSCRIBE from the PDML, please visit the link
timber,
The rest of us have no idea where you are looking to form your opinions.
Maybe you can back them up with something? Pictures, links, ???
Regards, Bob S.
On Thu, May 21, 2009 at 4:53 PM, Peter Zalabai tim...@clancode.hu wrote:
Hi list,
Sorry for opening a new K-7 thread... I just
- Original Message -
From: Bob Sullivan
Subject: Re: Oh another K-7 thread...
timber,
The rest of us have no idea where you are looking to form your opinions.
Maybe you can back them up with something? Pictures, links, ???
Really. To me, it isn't missing anything crucial. A higher
On Thu, May 21, 2009 at 07:10:28PM -0600, William Robb wrote:
The difference between 1/180th and 1/250th flash synch is substantial
when shooting a brightly backlit subject in bright daylight.
A lot can happen in 0.0016 seconds.
C'est what?
For example, someone walking by at a brisk pace
On Thu, May 21, 2009 at 10:51 PM, Matthew Miller mat...@mattdm.org wrote:
On Thu, May 21, 2009 at 07:10:28PM -0600, William Robb wrote:
The difference between 1/180th and 1/250th flash synch is substantial
when shooting a brightly backlit subject in bright daylight.
A lot can happen in
You're missing the fact that the amount of flash exposure you can work
into a shot is dependent only on the f stop. So if I shoot a backlit
portrait outdoors at f5.6, 1.250th, I can fill flash in at that 5.6
value. If I'm forced to stop down to f6.7 because I can't go beyond
1/180th in
me
one real soon. Right now I'm kinda busy fixing the light leaks in my Zenit
E..
Original Message -
From: Paul Stenquist pnstenqu...@comcast.net
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Thursday, May 21, 2009 8:09 PM
Subject: Re: Oh another K-7 thread...
You're missing
Mail List pdml@pdml.net
Sent: Thursday, May 21, 2009 8:09 PM
Subject: Re: Oh another K-7 thread...
You're missing the fact that the amount of flash exposure you can work
into a shot is dependent only on the f stop. So if I shoot a backlit
portrait outdoors at f5.6, 1.250th, I can fill flash
On Thu, May 21, 2009 at 11:09:00PM -0400, Paul Stenquist wrote:
You're missing the fact that the amount of flash exposure you can work
into a shot is dependent only on the f stop. So if I shoot a backlit
portrait outdoors at f5.6, 1.250th, I can fill flash in at that 5.6 value.
If I'm forced
- Original Message -
From: Matthew Miller
Subject: Re: Oh another K-7 thread...
Okay, seriously -- the time difference just doesn't seem that much. (1/643
of a second *different*.) Neither does half a stop. I accept that there's
some narrow cases where it'd help, but I can't see
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread...
This is catastrophic! My retirement plans were entirley based on selling
backlit protraits of hummingbirds to microstock agencies!!! I've really
had it with Pentax. There are lots of real pro systems
@pdml.net
Sent: Thursday, May 21, 2009 9:20 PM
Subject: Re: Oh another K-7 thread...
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread...
This is catastrophic! My retirement plans were entirley based on selling
backlit protraits of hummingbirds to microstock
Mmm 5dmk2 anyone?
Yes, 1/200 only (which really doesn't excuse Pentax, just another datapoint).
On Fri, May 22, 2009 at 5:48 AM, Adam Maas a...@mawz.ca wrote:
John,
Flash sync does
matter and Pentax continues to offer the only camera in-class with a
sub-1/250 sync (the 40D/50D, D300, E-3 and
- Original Message -
From: John Poirier
Subject: Re: Oh another K-7 thread...
Yes, I was going to slip quietly away, but I made the mistake of looking
at one last message. That combined with a slow evening and two
near-lethal martinis from my darling wife led me astray. Normally
Well, William, what does the VW stand for? Cheers, Christine
- Original Message -
From: William Robb war...@gmail.com
To: Pentax-Discuss Mail List pdml@pdml.net
Sent: Friday, May 22, 2009 12:48 AM
Subject: Re: Oh another K-7 thread...
- Original Message -
From: John
On Thu, May 21, 2009 at 08:51:16PM -0600, William Robb wrote:
- Original Message -
From: Bob Sullivan
Subject: Re: Oh another K-7 thread...
timber,
The rest of us have no idea where you are looking to form your opinions.
Maybe you can back them up with something? Pictures
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