Artifex Engineering Precision Polarizer Mount

The 04PLM-2(M) rotation mount utilizes a ring rail with smooth surface for smooth backslash free rotation. The center aperture is fit for 1” diameter optics such as polarizer, retardation plate which is secured in place with a threaded retaining ring. 360 degree laser engraved scale marked on the front plate at 2 degree increments allows the repeatable positioning and angular adjustment. A top screw can lock and secures the rotational position of the mount. Maximum thickness of optical is 0.28” (7mm.) * Accepts 1 inch optic and up to 0.28 inch (7mm) thickness * 2˚ Graduated increments and every 20˚ number * Continuous 360˚ angular motion with finger. * Thumbscrew lock to ensure angular positionin