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Old 23-04-2010, 07:38 AM
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JohnH
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Join Date: Feb 2005
Location: NSW
Posts: 1,226
James, looks like a good match. A couple of questions though - what is the spacing required (CCD to lens) - have you simply screwed this into the t-ring? How much backfocus does it require? The image with the flatterer seems to have bigger, bluer halos around the bright stars - is that your experiance or is it simply because the images were not processed the same way?
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