Thread: Snake Valley Part III (Collimation & Temperature)
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Old 16-11-2005, 06:20 PM
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asimov (John)
Planet photographer

asimov is offline 		 
Join Date: May 2005
Location: Bundaberg
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In bad seeing conditions I use a aperture mask to see the diffraction rings. They maybe wavering around, but it's still possible to collimate good enough for visual use.

Slice, 1 deg. from ambient is enough to see the difference visually.
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