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RE: Proper Focal Length

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Posted by Steve F on September 5, 2000 22:13:35 UTC

I have an 8" f/8 Newtonian telescope. I am very happy with the focal length, but if I had it to do over again I think I would aim at f/7. The mirror is still easy enough to make well, and it can have a small diagonal mirror. This does make a telescope which is about 5 feet long, so you need a place to store it.

The eyepieces I would use most are a low power of about 32mm and a higher power of 10mm.

Good luck with your project, there are many fine books and web sites out there to help you out.

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RE: RE: proper focal length - Long focal length (plenary) Newtonians. - September 15, 2000 - 20:51 UTC

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