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Message: <blockquote data-quote="Canuck Bob" data-source="post: 3527752" data-attributes="member: 140655">I'm adding two considerations to my decision.Apparently flexible eyecups are made from a rare rubbery unobtanium! Folding the cups concern me over the long haul.Glassless viewing opens the user to some nice older bins with the short ER and hard cups.My eye problems, cataracts, will take awhile to fix.  Maybe after contacts will be an option if needed.</blockquote>