(1)Viewing Head:Seidentopf trinocular head inclined at 30°, Interpupillary 48-75mm
(2)Nosepiece:Backward quintuple nosepiece, Center adjustable
(3)Analyzer:360° dial rotation Minimum scale reading：0.1°（Vernier scale）
(4)Conoscopic observationattachment:Switch between orthoscopic and conoscopic observation, Bertrand lens position adjustable
(5)Optical Compensator:First-order red plate, Guarter-wave plate, Quartz wedge
(6)Polarizing Rotatable Stage:Diameter Φ170mm, Center adjustment, 360° scale, Minimum division 1°, Minimum reading 6 by means of vernier scale, 45° Click stop knob