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Old 2nd December 2010, 06:14 PM
Artfull-Bodger Artfull-Bodger is offline
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Join Date: Feb 2010
Location: Llantrisant
Posts: 308

have made similar enquieries myself, as it doesnt seem to matter what scope I use I always range a bit short if I'm observing into gloomy/dark woods etc!
having heard several people complain of the same phenomenon with different scopes I was wondering if it had more to do with your eyes and pupil size changing the focal depth, never really got to the bottom of it but we had a very good disertation from Rob on here if you do a search for it!
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