I have used Steiner''s Military/Marine 7X50 model on my job for several years now and can say I''m glad my money didn''t purchase them. The eyecups pop off much too easily. This annoyance is not an isolated defect as I have seen this happen constantly and repeatedly on every one of several units we have. Considering the premium price this is unacceptable.
I have also noticed that the rubber covering the buttons on their models with lighted compasses on display at West Marine peels off just from people trying them out.
Otherwise, they seem optically excellent, but other brands offer good optics without this shoddiness.