C-mounts for Bausch & Lomb StereoZoom 6 Photo stereomicroscope photoport. These C-mounts will also work on Bausch & Lomb Balplan trinocular ports with the addition of a spacer ring (included with BLBP part numbers). The MM-SZ6C32 and MM-BLBPC32 are 0.32x magnification adapters for 1/3" c-mount camera sensors and the MM-SZ6C50 and MM-BLBPC50 are 0.5x magnification adapters for 1/2" c-mount camera sensors.