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Message: <blockquote data-quote="Kammerdiner" data-source="post: 1741535" data-attributes="member: 75300">For me, in terms of exit pupil, "ease of use" means the bins come up and you have the view with little or no fiddling around to line up the exit. I'm guessing it's harder to achieve for those of us wearing glasses because there's no natural way to line up the bins, i.e. no eyesockets to settle them in. So with little exit pupils, you find yourself fiddling around with them, bouncing them around to get the view.I've always found 3mm to be about my minimum, and it just gets easier as you go up from there. I have always used 8x25's and never had any problems.But, some exit pupils are easier than others. I recently found a Nikon 10x25 (2.5mm) that had an easier view than the Leica 8x20 (also 2.5mm). I bring it up and have the view immediately. With the Leica, four out of five times I'm juggling them. Whether it's because of eyepiece design, eyecup design (my best guess), subtle differences in eye relief--I don't know.Similarly, my Zeiss 8x32 is fussier than my Pentax 8x32, and even my 8x32 SE. Again, I'm not sure which factors are involved.I had stopped using full-size for awhile, but recently picked up the Zen 8x43. Man, the view is big and easy! The view just sits there like you're looking out a picture window or something.</blockquote>