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Message: <blockquote data-quote="spyglass" data-source="post: 1741221" data-attributes="member: 18470"><p>Well, I wouldn't necessarily say the "Alfa" mfrs do everything right..... they've wet the bed on few occasions. And the driving factor seems to be how small they can make a bino that'll work. The ease of use thing Alberto mentioned is, to me, quite a big deal. Over the 50 yrs I've been an avid bino user, I've found one of the most annoying things when you're trying to get a quick look at something is having to find the center of a very small ep. I think that 3.2-3.3mm is just about the minimum for this, then up to about 6mm. Conversely, I've never seen a real advantage to a 7x50 (except on a boat) over a 7x42 or 8x50. That is MHO and certainly an open gate to disagreement.</p></blockquote><p></p>