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Message: <blockquote data-quote="paddy7" data-source="post: 3429905" data-attributes="member: 88594">Well, i have got piggy eyes - and it was time for a beer! One point here is the reference to the 'brightness' of the optical system overall. A friend who specialises in gulls swapped to the HT two years ago, which gives him that vital extra 20mins at the end when the big chaps are coming in to roost.Other bins of the same dimensions often drop away before John has finished.Whether this is because of the number of elements in the system or the quality of glass, research and build i don't know.....My point of departure is not when i stop 'seeing,' but when i stop 'resolving', which seems to announce itself but constant fiddling with the focus.Now, whether any proposed 8x32SF can give me another 20 mins or so, or whether i'm prepared to pay probably a minimum of £800 more than i paid for the FLs is another matter! I couldn't get rid of them anyway - we've been too far together.</blockquote>