Here's a way for you do do some binoviewing on the cheap. I'm selling this fine German-made Wolfe - Wetzlar microscope head (45 degree viewing angle). It has a 1.25" fitting and adjustable diopter. The base magnification on this is 1.25x. It also includes (2) 25mm eyepieces. The total weight is 2 lbs (with eyepieces). Asking $150 (includes CONUS shipping). PayPal or money orders.