(1)Viewing Head:Seidentopf trinocular head inclined at 30°, Interpupilary 48-75mm
(2)Nosepiece:Backward quintuple nosepiece, Center adjustable
(3)Analyzer:360° dial rotation Minimum scale reading：0.1°（Vernier scale）
(4)Focusing:Coaxial coarse & fine adjustment, Range 32mm, Fine division 0.001mm, Coarse stroke
37.7mm per rotation, Fine stroke 0.1mm per rotation