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Message: <blockquote data-quote="elkcub" data-source="post: 1518560" data-attributes="member: 14473">Renze,It really is amazing that one can place the entire Swift eyecup inside the Nikon's and still have a small amount of wiggle room.  Anyway, for me it adds too much length, so I lose  field, but it doesn't effect the SE's miniscule tunnel effect.  Due to their oversize eyecups I just find them better suited to use with glasses (although not uniquely so).  Ed</blockquote>