Thread: Mods to el-cheapo 4.5" reflector
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Old 24-06-2005, 06:56 PM
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Starkler (Geoff)
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Join Date: Sep 2004
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What is that straight edged obstruction to the upper right seen in the secondary ?
The obstruction on the left of course is the focuser drawtube. Any obstruction is going to affect the star test and the quality of focused views.
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