Mirror shake ?
Simon Worby wrote:
> I've just had some photos back taken with my new-old 200mm f4 Zuiko. I have
> two shots of the same thing, one fast speed, low DoF (probably f4), and one
> low speed, high DoF (probably f22). The latter is blurred -- like camera
> shake, but I know for sure I took it on a tripod with cable release. IIRC
> speed was around 1/4 second. All the small aperture shots taken with this
> camera/lens combination (OM-1N & 200 f4) are blurred; all were taken using
> cable release and tripod. Small aperture shots taken with my 35-105 lens seem
> fine (same camera).
>
> Is it possible to have a lens that is "broken" at small apertures? Would the
> sympoms be consistent with mine? Is there any further way of telling /
> conclusive tests I can run?
>
> Thanks in advance...
>
> Simon Worby
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