To: 
Reply-To: "Scott Berfield" 


Anyone out there using the Clement focuser (you don't count, Don!)? The
price is far more affordable now and it looks like a great solution in many
ways. My one concern is the size - it looks like it wants to be a pretty
big triangle when racked all the way in to it's 1" height. My tube is
going to be app. 14.5" in diameter and a 9" triangle on one side
of it will take up a lot or real estate.

On the other hand, the 1" height makes it possible for me to use a
smaller secondary than I might otherwise do, and that is something I like a
lot. The compliant hinge design looks to me like it will lead to VERY
stable movements and minimal shift - which is really good.

Any opinions from users?

Also, in looking at other focusers I find myself wondering about maybe
mounting them so that they are lower than the OD of the tube - perhaps on a
flat section on the tube. This could get me enough closer to the secondary
to get the smaller secondary with a more traditional focuser. Are there any
downsides to doing this? With a 12.125" usable diameter on the primary
and a tube with an ID of 14.25, I figure I could lower the focuser a good
3/4" without messing up the light path too badly. Any thoughts?

-sb

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Don't worry about people stealing your ideas. If your ideas are any good,
you'll have to ram them down people's throats.
- Howard Aiken

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