Too bad the mirror prefire did not also do an aperture prefire. Something for
the OM-5 and OM-6.
It seems to me some vibration mode was excited. Perhaps adding some extra
weight to the lens would interfere with this. Perhaps some lead sinkers
attached with Velcro? Or even better, a bean bag with BBs that would
absorg/diffuse vibration. It's easier to add than subtract.
Tom
> Date: Sun, 02 May 1999 21:06:21 +0200
> From: Richard Schaetzl <Richard.Schaetzl@xxxxxxxxxxxxxxxxxxxx>
> Subject: Re: [OM] 200mm F4 / F5 vs. 65/200mm F4
>
...
> To verifiy this I prefired the aperture of an OM-1 with flipped up mirror
> (taped the DOF button down). This had an very noticeable effect of reduced
> vibrations (practicaly as good as an OM-4 with selftimer). Prefireing of
> the aperture alone had an much bigger effect on reducing the vibration
> than a simple mirror prefire.
...
------------------
From: Tom Trottier, President, ACT Productions Inc.
infoanim@xxxxxx http://www.act.ca
+1 613 594-4829 fax +1 613 594-8944
199 Holmwood Ave, Ottawa, Ontario, Canada K1S 2P3
"Make it as simple as possible, but no simpler" - Einstein
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