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				Eyepiece: 10X wide field plan eyepiece and field of view number is Φ 22mm, the eyepiece interface is Φ 30mmAchromatic Objectives: RYS-500M Uptight seriesPL L5X/0.12 working distance 26.1 mmPL L10X/0.25 working distance: 20.2 mmPL L20X/0.40 working distance: 7.2mmPL L40X/0.60 working distance: 3.98 mmRYS-500M-BD Upright series (Equipped with dark / bright field objective)PL L5X/0.12 BD working distance: 8.05 mmPL L10X/0.25BD working distance: 7.86mmPL L20X/0.40 BD working distance: 7.2mmPL L40X10.50BD working distance: 3.0mmEyepiece tube: Trinocular inclined 30', pupil separation 53-75 mmFocusing: Coaxial coarse/fine with tension adjustable device Minimum division of fine focusing: 2.0µmNosepiece Quintuple: (Backward ball bearing inner locating)Stage: Mechanical stage I Size: 210mmX140mm | Moving range: 63mmX50mmIllumination: RYS-500 Upright series 6V 30W halogen and brightness enable control -Transmission illumination: RYS-500BD Upright series 12V 30W halogen & brightness control 12V 50W halogen & brightness control for reflecting IlluminationIntegrated field diaphragm, aperture diaphragm and puller type polarizerEquipped with ground glass and yellow, green and blue filtersEyepiece Dividing eyepiece (Φ 22mm)Objective RYS-500 Upright series | Bright field objective 60X, 50X, 80X, 100X(Dry)RYS-500BD Upright series Bright & dark field objective 50X, 60X, 80X, 100X |