Thread: My new wide-view Orion Stratus eyepieces are here!
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Old 06-12-2005, 08:40 PM
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janoskiss (Steve H)
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Join Date: Jan 2005
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how to check sharpness
Quote:
Originally Posted by Starkler
Quite simple.
Get your collimation spot on and then check how tightly stars focus on a night of good seeing.
Do you mean the Airy disk is smaller in a sharper EP?
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