Larry,
On Mon, Dec 14, 2009 at 9:37 AM, Larry Colen l...@red4est.com wrote:
I think that this means that the focusing screen is not properly calibrated.
I ran into this problem on my K20D. Rachel Katz said that with the K20s, the
number of miscalibrated screens went way up. In my case, they
- Original Message -
From: Boris Liberman
Subject: Problem with Katz Eye and A 50/1.2 on my K-7
Hi!
Yesterday I realized, well I noticed, that my A 50/1.2 misfocuses on
the K-7. I made a shot of a car from about 10 meters and it came out
soft. I shrugged and tried again and it came
Boris Liberman wrote:
Larry Colen wrote:
Have you carefully calibrated the focusing screen with all of your lenses?
You may have just noticed it with the 1.2 because of the shallow DoF.
On Mon, Dec 14, 2009 at 9:08 AM, Derby Chang der...@iinet.net.au wrote:
Yvon has this nifty
On Dec 14, 2009, at 12:21 AM, Boris Liberman wrote:
Larry,
On Mon, Dec 14, 2009 at 9:37 AM, Larry Colen l...@red4est.com wrote:
I think that this means that the focusing screen is not properly
calibrated.
I ran into this problem on my K20D. Rachel Katz said that with the
K20s, the
number
The A f1.2 is a manually focusing lens. The electronic calibration
won't work. If the problem isn't user error, then the focusing screen
doesn't agree with the sensor plane. That requires a trip to a repair
center to have it re-calibrated. Probably with shims...
Larry Colen wrote:
On
On 12/14/2009 9:08 AM, Derby Chang wrote:
Hi Boris
Yvon has this nifty chart you can download and print on card. Won't
solve your problem but you can quantify it.
http://pentaxdslrs.blogspot.com/2008/06/part-1-autofocus-adjustment-for-pentax.html
Well, I did print the chart, but forgot it in
From: Boris Liberman
Larry Colen wrote:
Have you carefully calibrated the focusing screen with all of your lenses?
You may have just noticed it with the 1.2 because of the shallow DoF.
On Mon, Dec 14, 2009 at 9:08 AM, Derby Chang der...@iinet.net.au wrote:
Yvon has this nifty chart you
On Mon, Dec 14, 2009 at 05:19:12PM -0500, John Sessoms wrote:
From: Boris Liberman
Larry Colen wrote:
Have you carefully calibrated the focusing screen with all of your
lenses?
You may have just noticed it with the 1.2 because of the shallow DoF.
On Mon, Dec 14, 2009 at 9:08 AM, Derby
Hi!
Yesterday I realized, well I noticed, that my A 50/1.2 misfocuses on
the K-7. I made a shot of a car from about 10 meters and it came out
soft. I shrugged and tried again and it came out soft. Then I
deliberately focused farther from what the screen was indicating was
in focus and it came out
On Dec 13, 2009, at 9:53 PM, Boris Liberman wrote:
Hi!
Yesterday I realized, well I noticed, that my A 50/1.2 misfocuses on
the K-7. I made a shot of a car from about 10 meters and it came out
soft. I shrugged and tried again and it came out soft. Then I
deliberately focused farther from what
Larry Colen wrote:
On Dec 13, 2009, at 9:53 PM, Boris Liberman wrote:
Hi!
Yesterday I realized, well I noticed, that my A 50/1.2 misfocuses on
the K-7. I made a shot of a car from about 10 meters and it came out
soft. I shrugged and tried again and it came out soft. Then I
deliberately
Larry Colen wrote:
Have you carefully calibrated the focusing screen with all of your lenses?
You may have just noticed it with the 1.2 because of the shallow DoF.
On Mon, Dec 14, 2009 at 9:08 AM, Derby Chang der...@iinet.net.au wrote:
Yvon has this nifty chart you can download and print on
Boris,
The Katzeye screen may be not seated completely right.
If you accept to take the risk (but is it really a choice?), I'd
remove the Katzeye and reseat it.
If not better, I'd put back the genuine screen and try again.
Getting there, you should be able to determine if the problem is one
of
On Dec 13, 2009, at 11:25 PM, Boris Liberman wrote:
Larry Colen wrote:
Have you carefully calibrated the focusing screen with all of your
lenses?
You may have just noticed it with the 1.2 because of the shallow
DoF.
On Mon, Dec 14, 2009 at 9:08 AM, Derby Chang der...@iinet.net.au
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