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PM-480TRF.3e
Optical SystemViewing Head
Seidentopf trinocular head inclined at 30°, Interpupilary 48-75mm
Eyepiece
Plan eyepiece EW10X/22
Plan eyepiece with scale of crosshair, Plan eyepiece with cross, Plan eyepiece with gridding
Strain-Free Plan Achromatic Objective
5X/0.12/∞/- WD 15.5mm
10X/0.25/∞/- WD 10.0mm
20X/0.4/∞/0 WD 5.8mm
50X/0.75/∞/0 WD 0.32mm
100X/0.8/∞/0 WD 2mm
Nosepiece
Backward quintuple nosepiece, Center adjustable
Analyzer
360° dial rotation Minimum scale reading：0.1°（Vernier scale）
Conoscopic observation attachment
Switch between orthoscopic and conoscopic observation, Bertrand lens position adjustable
Optical Compensator
λ -1/4λ
First-order red plate, Guarter-wave plate, Quartz wedge
Polarizing Rotatable Stage
Diameter Φ170mm, Center adjustable, 360° scale, Minimum divison 1°, Minimum reading 6' by means of vernier scale ,45° Click stop knob
Attachable Stage
Moving range 30mmX40mm
Focusing
Coaxial coarse & fine adjustment, Range 32mm, Fine division 0.001mm, Coarse stroke
37.7mm per rotation, Fine stroke 0.1mm per rotation
Polarizer
Reflected: Fixed
Illumination
Reflected light: 24V/100W Halogen lamp, Brightness adjustable
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