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8" GSO and canon 40D strange stars
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28-09-2009, 04:08 PM
TrevorW
Registered User
Join Date: Aug 2006
Location: Western Australia
Posts: 7,866
Hi Graham
Some of my first images showed top left same as yours
replaced the focuser with a moonlite
and re colimatted
seemed to have fixed the issue
also check tracking
TrevorW
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