Hi Mike,
Do a web search for "barn door tracker". From the many sites which
come up you should be able to either put one together yourself or
talk a friend into doing it for you. These simple devices can allow
for shots long enough that film reciprocality failure becomes an issue.
Hope this helps
Tom
>date: Thu, 14 Mar 2002 11:38:37 -0500
>From: "Mike Cormier" <ronaldcormier@xxxxxxxxxxx>
>Subject: RE: [OM] when best to use cable release
>
>In the past, I have tried using my cable release with astrophotography,
but
>since I don't have one of those wonderful computer-controlled
astro-guidance
>tripods, I always end up with circles or streaks of stars. I'd like to
get
>a motorized guider and take some of those Hubble-esque photos you can only
>get in the non-light polluted countryside. The OM-1 is 1000erfectly
>suited for this IMHO.
>
>Now if only there were more that I could do to brighten the viewfinder
>beyond installing a 2 series screen and using the vari-magnifinder to
>acheive that perfect focus... or would setting the focus ring at infinity
be
>just as good? In any event, it's obvious that I lack experience in this
>type of photography, but I AM interested... ;)
>
>I also read somewhere about using gas-treated 800 ASA film for finer
>grain... practical, or no?
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