You mean something like this (where - is clean image, % is lighter, and + is
darkest):
-----%%+%%-----
-----%%+%%-----
-----%%+%%-----
-----%%+%%-----
-----%%+%%-----
With the proviso that I am no technician, that seems to indicate that the
first shutter curtain is slowing down in mid-travel, the second curtain
catches up with it after also slowing down before the first curtain then
accelerates again, and then resumes its intended course and speed, with the
second curtain following suit. I can't see what else could cause the
shutter slit to vary in width from normal, to wide, to narrow, to wide, to
normal.
Perhaps there is a mechanical obstruction somewhere?
Get the OM1n out Craig!
Piers
-----Original Message-----
From: olympus-owner@xxxxxxxxxx [mailto:olympus-owner@xxxxxxxxxx] On Behalf
Of Matheson, Craig
Sent: 13 July 2004 13:34
To: olympus@xxxxxxxxxx
Subject: [OM] Re: OM4 strange electronic buzzing sound
Incidentally some of my photos are displaying a dark vertical patch (middle
only) and around this an over-exposure patch which makes it kind of look
like a vertical eye. The rest of the photo is ok.
--snip
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