On 29 March 2010 13:05, Boris Liberman <[email protected]> wrote:
> My understanding is that the position of the focusing screen (not the
> mirror, but the screen) has nothing to do with operation of AF. Notably, my
> current Katz Eye focusing screen in not aligned properly while AF works spot
> on. And AF was spot on before I changed the screen as well.
>
> Boris
Boris,
You are correct, the AF sensor is upstream from the viewfinder so is
not affected by the screen, but it is affected by the mirror because
the AF unit is under the mirror while the VF screen is above it. My
K10D is correctly calibrated for AF, but back-focuses with manual
focus. If I had a screen with shimmies I could probably move the
screen down to the appropriate position so manual and auto focus were
in sync.
Ideally I would also want easy access to the screw(s) that adjusts the
mirror angle so I could readjust it once if goes out of sync due to
use.
Are you planning on messing around with shimmies to get your KatzEye
adjusted, Boris?
--M
--
http://EnticingTheLight.com
A Quest for Photographic Enlightenment
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