Polarizer AND Analyzer 1329 - Polarizer/Analyzer

(POLAROID) l Manual Smooth continuous This apparatus consists of two identical units, each provided with Polaroid disc rotation by a lever every 10 degree l l Holds sheet polarizer of dia 25mm l by a retaining ring. Mounting which traverses a 75mm diameter brass diameter 75mm l bottom for mounting post is universal and can be fitted to any size of collimator and telescope. Tapped Hole M4 is provided at l l l Supplied with 9.5mm dia.