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Which Is Best?

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Posted by Andrew Podmore on October 11, 2002 11:58:24 UTC

I am planning to built a 8 inch Newtonian reflector, but am a little unsure as to which is the best f/ratio to build. I plan to do mainly deep sky work, but I would also be doing planetary work also i.e. astrophotography, sketching etc.
What is the best f/ratio?

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