Roger E., Thanks for the useful URL. Eyes have evolved in different creatures and in many ways dozens of times over the aeon's. They evolve to a point that is adequate for the particular organism. Most creatures require only a vague sense of luminance change or movement to get along in their world. Others like ourselves and the octopus have excellent, though differently evolved eye structures. I wonder if cepaholopds process what they see as we do? Do they have a life of the mind? Wonder how they would respond to photographs? Or do they have other ways to octopi their time? http://www.daviddarling.info/encyclopedia/O/octopus_eye.html The reason we manage to get by with very compromised vision (as we have seen in the present topic thread) is that our brain has to toss out most of the data the eye captures just to keep up. Film doesn't miss a thing. Check this out: http://www.guardian.co.uk/society/2008/dec/22/diy-adjustable-glasses-josh-silver http://blogs.discovermagazine.com/discoblog/2009/01/05/cheap-liquid-glasses-bring-clear-vision-to-the-poor/ AZ Build a 120/35mm Lookaround! The Lookaround Book. Now an E-book. http://www.panoramacamera.us
