Features: Super-rigid 2 x 2 1/4" extruded column with lifetime anodized finish. Reverses for floor projection Smooth and effortless counterbalanced carriage elevation Exclusive press-to-lift, release-to-lock carriage control Complete column reference scales Built-in 39mm international standard-threaded lens mount Deluxe, fully laminated oversized baseboard Double-condenser illumination system and all-glass optics Built-in supplementary filter holdre accepting 3" square filters (not supplied) Supplied with 75w opal enlarging lamp Negative carrier and lens not included