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Old 14-08-2014, 10:57 PM
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LightningNZ (Cam)
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LightningNZ is offline
 
Join Date: Oct 2011
Location: Canberra
Posts: 951
It's not pleasant is it? The Mak I briefly owned has a secondary Crayford focuser on it to avoid the mirror shift. I still copped it a bit when moving around the sky but it wasn't anywhere near as dramatic as when I had to refocus using the primary mirror.
-Cam
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