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Questions & Answers
My scope was knocked over....the reflector mirror
Most reflector mirrors are held inside the tube with a metal mirror cell that has clips that hold the mirror.
Remove the mirror cell at the bottom of the scope and re-clip the mirror back into the cell.
The scope will need to be collimated -- once the mirror is back in.
Watch this video:
on Nov 08, 2011
You did not mention your telescope make and model so:
1. measure eyepiece holder. Determine of you use .965in. or 1.25in. diameter eyepieces. If you use .965 eyepieces you are limited in choices. HANDSONOPTICS.COM carries nice Plossls. SURPLUSSHED.COM. sells .965 moon filters and cheaper eyepieces. If you have a 1.25 eyepiece holder, the skies the limit on eyepieces. Check Ebay plus other sites.
2. Determine the focal length of the eyepiece you want to use. As a rule, your scope can magnify 50x per inch of aperture although looking at just the moon, you can stretch that a bit. For example, a 80mm reflector (3.1 in). x 50 = 155x max. magnification (must be a perfectly clear night)
So now find the focal length of the scope (stamped/labeled somewhere) Typical refractor is 700mm. For maximum power (155x) it is: focal length of telescope/focal length of eyepiece = magnification. Or FL (scope)/ magification= FL eyepiece. 700/155= 4.5mm. This size will have terrible eye relief unless you spend $$$$$. Suggest a 10mm eyepiece which gives 70x power and a great view of the moon and planets
on Oct 22, 2011
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