Yeah I completely agree. The list goes on and on of what can cause
vibration. Even professional telescopes such as the Gemini scopes, ESO
VLT and the Keck have problems with vibration. I dare say that from my
exposed location wind is the major problem I enounter. Vibration is one
of those problems with telescopes which just cannot be fully eliminated,
unfortunately.
All the best,
Gareth.
It's not just the camera mechanism. The whole setup of 'scope, mount,
camera attachment, camera, etc has certain resonant frequencies at
which it easily vibrates naturally and others which hardly affect it
at all. A camera mirror/shutter mechanism that creates a great deal of
vibration at a 'dead' frequency can have less effect on sharness than
a camera which creates much less total vibratory energy, but does so
at a resonant frequency. Direction of vibration makes a difference
too. The horizontal shutter in all OMs except the OM2000 differ from
the vertical shutter mechanisms in most recent cameras.
Other factors like wind, equatorial drive motor, vibration from the
earth, etc. could create ongoing vibration with one camera body and
not on with another.
Moose
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