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Message: <blockquote data-quote="Kevin Purcell" data-source="post: 1405231" data-attributes="member: 68323">It's always difficult to tell if this is a real effect. For example I have a Pentax WP 8x32 that is consistently "sharper" in the center field (many tests so I now believe this is real) than my more expensive Pentax SP 8x32. The coatings are newer on the latter (and color bias is more neutral on the latter).But the problem is I only have one of each of these bins. So is this a "cherry" WP and an "average" SP? i.e. is this just manufacturing variation?Or did something else change (aberration perhaps?) with the redesign?I have no way of knowing. And you have a similar sort of problem too.One reason why getting multiple people to review bins, and compare them against multiple other bins, is a good idea. Even when we don't agree (e.g. the current ZRS review) I think we reveal something even though it can be rather confusing.</blockquote>