Thread: Deterioration of image with Barlow
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Old 22-02-2006, 06:46 PM
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yagon
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Join Date: Feb 2006
Location: N Sydney, Seal Rocks, other remote beaches
Posts: 171
Deterioration of image with Barlow
Does image quality deteriorate with use of a Barlow?

That is, is one better off using 10mm eyepiece or a 20mm eyepiece with 2x barlow?
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