My compact 10x25 BCA binos are giants in performance at only 9oz. I compared them along side my beloved 1980's 7x35 BA TRINOVIDS (the STRADIVARIUS of binos) and only sacrifice some field of view, a steadier hold, and some dusk/dawn brightness. They are not so useful on a boat or in a moving vehicle, but for their intended uses they are very, very good, extremely clear. I love the newer eyecup design. They are worth their price and come with a great warranty for the original owner. So, \"buy new\".