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Message: <blockquote data-quote="Binastro" data-source="post: 3243539" data-attributes="member: 111403">.Looking at this computer screen and comparing the 6.5×21 Papilio II and the zoom monocular I get the following.With the rubber eyecup folded on the zoom monocular and the Papilio eyecup screwed down and using just one eye, I can see the whole field of view with the Papilio. Similarly, with the zoom monocular at 15 times or even 20 times. However, this is a struggle with the monocular as I have to push my glasses back as far as possible to my eyes. And this is using my smallest glasses, which are my reading glasses, which may have the shortest distance from the lens to my eyes.You may have to accept a restricted field if you use the monocular at 15 times or 20 times. Whichever way you need to have small glasses. Or maybe at these high magnifications you could do with out glasses?As to the field of view. Looking at the computer screen the real field of view with the zoom monocular at 15 times is about one third of the field of the Papilio binocular at the same screen distance.With the Papilio, the shortest distance is quite a bit less than with the zoom monocular, mainly because the zoom monocular is about 3 inches longer than the Papilio. So although the distance to the objectives is similar, one can get closer with the Papilio.As to the field of view, what do you actually want me to measure?</blockquote>