Giles wrote:
> In the fairly recent 200mm f4 / laser pointer /MLU Aperture pre-fire/
> discussions it
> was hypothesised that The Idea of holding the Camera and lens, rather than not
> touching them and using a cable release, was because the soft water tissue of
> the
> human body acts as a damper and actually absorbs more undesired vibrations
> than it
> imparts.
>
I do an awful lot of birding and frequently use spotting scopes. I've
had the opportunity to use all types of scopes with all types of tripods
and there is not a one that will not vibrate very visibly at higher
powers. This is usually controlled by waiting a bit for it to settle
down, which can take a surprisingly long time, or, especially in the
wind, with a bit of hand pressure. I would think mirror and shutter
vibration would act much the same and be improved with careful hand
pressure. Prehaps draping a plastic bag filled with silicon gel such as
an old silicon prosthesis over the camera and lense would have the same
dampening effect.
Jerry Liles
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