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Well, no difference between 8x32 and a 10x42 - both have a 4mm exit pupil. Okay, 4.2mm in the 10x42, but if you can see an exit pupil difference of 0.2mm you don't need binoculars.

Pros and cons like most things. The main disadvantage of a rangefinder/bino to me is that they only come in larger binoculars such 8x42 or 10x42. A decent high quality pair of 8x32 binos is so much...