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Message: <blockquote data-quote="John Fleet" data-source="post: 609714" data-attributes="member: 2368">CanSorry, I think that I missed this post!  Yes, vignetting = dark circular area around the image. What lens would you suggest that I try next? This lens malarky is starting to get expensive!  I've not got an Astro 8 - 24 zoom which is no use for digiscoping, the orginal cheapo 15mm also not enouth eye relief, a 12.5 mm ED, and now the 32 mm Celstron Plossl bought on your advice, which si the one used for the Bullfinch photo. If I'm going to shell out again, I need (ideally) more depth of field, poss more eye relief and maybe less magnification.....John</blockquote>