----- Original Message -----
From: Anton Browne
Subject: 6X7 Shutter/Mirror Vibration


> I have a non-MLU 6X7.
>
> If you fire the shutter on B you will notice that the majority
of the shock occurs when the shutter/mirror closes. Of course
this will have no effect on the exposure as that is already
complete. I'm sure MLU will make some difference but I'm not
sure that it will be significant and the shutter is probably the
main culprit anyway.

The 6x7 mirror is pretty well damped. Try Mike's nickel trick
sometime. However, there is enough vibration from it to cause
problems at middle to slow shutter speeds, between 1/8 and 1/30
second.

William Robb


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