The Binomate Binoviewer by BC & F (Broadhearst, Fuller and Clarkson). Features include focusing diopters each side, a feature you get on only the more expensive Binoviewers. Lightweight (under 18 ozs). Nice rubber surface for good non-slip grip. Very nice cosmetics, standard filter threads on bottom of 1.25" sleeve. Image brightness is EQUAL for both eyes. That's something even the more expensive BV's can't claim. Sharpness is second to none. Get a apir for $ 299.00 while they last. COnsider the 100mm F/6 refrwctor with the BV setup for only $ 495.00. Includes star diagonal, caps for both ends, Finder scope and dovetail bracket for quick release. Buy the combo set for $ 495.00 plus shipping. Tripod & eyepieces not included. Here is your inexpensive entry to binoviewing.