From: Ralph Seguin 
To: atm{at}shore.net
Reply-To: Ralph Seguin 


Ok.
In an insane rush to get things done before our trip to Hawaii next week, I
want to put together a binocular telescope that I can bring with us.

I have a pair of matched 6" f/5-ish mirrors (would prefer 8",
10" or larger, so if anybody has any...).

My questions are:
-What are the necessary adjustments in order to get
proper image fusion?

-How do you handle IPD adjustment?  I've thought of
using a linear bearings/slides for moving one of the entire tubes, or by
having focussers on one or each tube to handle side to side (IPD)
translation.

Problem with the first solution is making the structure super stiff.

The problem that I see with the 2nd solution is that it will require
additional in/out translation to do focusing (not a big deal).

-How much of a problem is field rotation?

-How do you deal with it?  I've been told that field
rotation is the biggest headache cause for fusing images.

-Prisms or mirrors for tertiary mirrors?

-How do I carry this on a plane without having them
assume I am a terrorist?


Thanks.
-Ralph



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