I am really pleased with my new Leica bins, but a lot peeved about a small retrograde design flaw, not with the bins themselves but with the new design lens caps,.. utter sh*te, they are shallower in depth & stay on the objective end for no more than minutes, maybe they are suffering from some form of coating like "Back to black, or cab shine", I even pierced a tiny hole through the centre of them in the hope it may have been an air pressure/seal issue, & the ocular cover is almost as bad, again very hit & miss as to it's shape in relation to the bins, Steve.