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Re: 8" EQ's - Celestron Vs. Apogee
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Jim.L on January 23, 2000 10:16:16 UTC |
: I fiured it out, if you divide the focal length by the aperture you should get the focal ratio, (according to what I have read). This should give the Celestron g8n a focal ratio of f/10. 1"=25.4mm, 25.4 multiplied by 8= 203.2mm, 1000 divided by 203.2= 4.92.. f/5 Atlest thats how I do it. |
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