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Old 10-08-2010, 03:14 PM
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mill (Martin)
sword collector

mill is offline
 
Join Date: Oct 2006
Location: Mount Evelyn
Posts: 2,925
The Qhy5 doesn't need a filter when guiding but to keep it as clean as possible i would at least put a ir or uv filter on it (or a clear 1.25" filter).
For guiding you dont have to have the star pinpoint sharp as the guiding software guides on the middle of the star anyway.
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