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Old 20-07-2018, 09:39 PM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,106
Quote:
Originally Posted by bratislav View Post
. Big primaries, big secondaries, big correctors and focusers simply make things if not impossible, at least extremely hard to keep collimation 100% in check when traveling around the world.......
Sorry...couldn’t resisit. My AP305mm F3.8 RHA arrived with perfect collimation
and remains so to this day.
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