Folded Refractor

There's not a whole lot of info to be found about this type of scope for those who'd like to build one, so... I'd like to share a few pics of a folded refractor I just put together.
It's a 100mm f/13 Carton objective. Two - 1/20th wave mirrors redirect the lightpath out the side of the tube newt style. In a sonotube for now til I come up with a better tube. It was a fun project - went together almost too quick. Planning took way longer than actual build time.
Initial tests look very promising.
C'mon skies - clear up...
Tim

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another shot

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Tim Abbott said:

There's not a whole lot of info to be found about this type of scope for those who'd like to build one,

Sweet. How does she perform?

Its VERY interesting that you show this because I am building a pipe-GEM mount from "All About Telescopes" and I keep seeing this design and wondering if it would be worthwhile.

Let me know how it works out!

Nicely executed work. If you think a double fold requires preplanning and accurate alignment...........here is a clever triple fold constructed by Dave Bevel inspired by an original article on this design in S&T.

http://www.gate.net/~davebevel/Drumscope/

Nicely executed.

I built two folded refractors several years ago. The first one had an excellent 5" f15 doublet objective. I cheated somewhat and had just one fold in the ota. You could either look down the focuser or use a regular refractor diagonal to redirect the light to a 90 degree angle from the scope.

Daniel

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Just a quick update for those interested...
Got it all painted - hammertone and white. Made rings and a dovetail. Car door edge trim on the ends of the tube. Added a budget finder. Looks more like a real scope now rather than a construction project. 8)
Tim

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