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Re: AW: [OM] OT astrophotography - was Zuiko telephoto fro astrophotogra

Subject: Re: AW: [OM] OT astrophotography - was Zuiko telephoto fro astrophotography
From: "Aaron Ginn" <olympus@xxxxxxxxxxxxxxxxx>
Date: Fri, 9 Aug 2002 22:59:52 -0700
> Fast, wide angle lens will "slow" it down some, but you are going to 
> get trails if you expose for "several minutes", unguided.  You can 
> make your own "barn door" guider that will allow longer exposures.

> There are instructions for these in some books on astronomy and there 
> may be even plans on the web.

Here's one:

http://ourworld.compuserve.com/homepages/pharrington/scotch.htm

Aaron


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