When doing still Lunar work,[ as opposed to video] I use ISO1600,
and a shutter speed of 1/2500 to 1/4000th depending upon the phase of the moon. This way, the exposure is over before the vibrations really get
under way. I can understand mirror vibes being felt through the tripod,
but am a bit surprised that the shutter ones can be felt. I'm guessing
that it is a light duty tripod.
raymo
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