At 07:18 PM 7/27/1999 +0200, you wrote:
>Joel Wilcox schrieb:
>
>> As I mentioned in the previous note, even
>> neutralizing aperture stopdown by taping it down (in one case) and testing
>> with the lens wide open (in another) did not smooth out the OM-1 for me.
>> Of course, this doesn't eliminate the root problem if it is in the camera
>> itself.
>
>Did you take photos to compare or was it just a laser pointer test? At
>least vibrations may also be produced after the shutter has closed.
>
>Regards
>
>Richard
>
Richard,
I *tried* to see the problem in photos, without much success. So I'm
relying on Gary's tests, which are more rigorously uniform and have a
better subject matter (GS maps).
All my tests show is that there is some movement. They don't pinpoint
exact sequences or causality. Matched to Gary's tests, however, I think
one starts to conclude that something in the shutter/aperture stopdown
actuation creates movement which at certain speeds degrades the recorded
image.
Joel Wilcox
Iowa City, Iowa USA
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