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Old 05-07-2012, 07:09 PM
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The Mekon (John Briggs)
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Join Date: Jul 2007
Location: Bowral NSW
Posts: 828
Binoculars are also collimated by turning eccentric rings that mount the objectives. This is the way better class binoculars are aligned. I have done this (using a bright star) with some success on a pair I purchased on ebay. Cheap binoculars do not have these eccentric rings, and often there is no means of aligning them at all.
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