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Message: <blockquote data-quote="John Dracon" data-source="post: 1728217" data-attributes="member: 14799">Following up on Ed's comments, since I'm one of an unknown percentage who doesn't see CA (I see it on photographic reproduction examples, but not when I take my binoculars outside under the conditions cited as CA producing), perhaps this is analogous to the absolute or perfect pitch ability of some people.  Some have it, and some don't.  I don't.  I still enjoy music in spite of my lack of tonal sensitivity.  And the same may be true for using binoculars even if my ulitmate acuity can't take advantage of alphas best.  The 8x32 SE still (for me) has the best image. I knew a fellow who used a poorly collimated binocular - so bad that my eyes begain to cross when I looked through it.  I told him he needed to get it collimated.  Yet he claimed it was OK.  It was some time later that I learned he was blind in one eye.  John</blockquote>