Thread: Boat telescope 2.0
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Wayne.B Wayne.B is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 10,492
Default Boat telescope 2.0
On Tue, 26 Aug 2008 19:31:21 -0700 (PDT),
wrote:

Progress while waiting for Fay to go away. Finished rough grinding
yielding a focal length of 24" (this is a 100 mm diameter f 6 mirror)
and finished the #120 grit and have started on the #180. My
magnifications will be a low of 15 X an a high of about 30X.

How do you know when you have the shape just right? What do use as a
blank?

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