The SX200-R2KN-LH is a left-handed, rear-loading, stainless steel mount for 2-in (50.8-mm) diameter optics. It is sold with two non-locking 254-TPI adjustment screws for precision pitch/yaw positioning. 254-TPI adjustment screws provide a 60% sensitivity advantage over the standard adjusters while the new stainless steel alloy gives a 38% lower Coefficient of Thermal Expansion (CTE).   The Suprema® XTE also has an optically black finish to reduce stray light reflections.   SX200 mounts have superior adjustability and feel. Polished and lapped carbide pads enable smooth, repeatable motion. This two-actuator configuration has tip and tilt adjustability over a range of +/- 7 degrees. Convenient 8-32 (M4) counterbored clearance holes provide quick, precise, secure and stable mounting. SUPREMA mounts are compatible with standard post and post holder systems for adjustable height and pedestal posts for a stable fixed height.