Of course the old hat trick don't work too good when you are going for
millsec's, or 1 sec. shot of the moon or planetary work....

m.

Bobby Middleton wrote:

> ----------
> > From: Dave Sage
> > In passing I might ask why do you care? Using the old hat trick
> (black
> > object in front of the lens) is a safer procedure to eliminate all mount
> > vibration.
>
> It's the only way to go. Even with mirror lock-up,
> one must worry about shutter vibration.
> But cable releases also carry vibrations very well. One cure is a bulb
> cable release, but the best way to go is the old hat trick. It will cover
> all
> possible problems.
>
> Bobby Middleton
>
> astropics at: http://home.unicomp.net/~bobbym/astro1.htm

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