The Optical Plummet Twist Focus Tribrach features twist focus (2.5X mag) and leveling screws with center line Features an 8-min vial, three-prong forced centering and a 5/8 x 11 base This tribrach has a focusing range of 1.5 to 50 feet (0.5 to 15 m) Grey Weighs 1.85 lb (0.84 kg)
This rotating friction top tribrach adapter allows the prism to be pointed after installation in the tribrach Fits all tribrachs Weighs 0.9 lb (0.41 kg)