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NP-800M
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Optical System
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Infinite optical system
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Viewing Head
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Seidentopf trinocular head inclined at 30°, Interpupillary 48-75mm
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Eyepiece
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EW10X/22 Plan eyepiece EW10X/22
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Plan eyepiece with scale of crosshair, Plan eyepiece with cross, Plan eyepiece with gridding
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Strain-Free Plan
Achromatic Objective
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4X/0.10/∞/- WD 17.3mm
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10X/0.25/∞/0.17 WD 10.0mm
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20X/0.40/∞/0.17 WD 5.10mm
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40X/0.65/∞/0.17 WD 0.54mm
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100X/1.25/∞/0.17 WD 0.13mm
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Nosepiece
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Backward quintuple nosepiece, Center adjustable
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Analyzer
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360° dial rotation Minimum scale reading:0.1°(Vernier scale)
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Conoscopic observation
attachment
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Switch between orthoscopic and conoscopic observation, Bertrand lens position adjustable
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Optical Compensator
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First-order red plate, Guarter-wave plate, Quartz wedge
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Polarizing Rotatable
Stage
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Diameter Φ170mm, Center adjustment, 360° scale, Minimum division 1°, Minimum reading 6 by means of vernier scale, 45° Click stop knob
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Attachable Stage
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Moving range 30mmX40mm
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Condenser
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Strain-free swing condenser NA0.9/0.25
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Focusing
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Coaxial coarse & fine adjustment, Range 32mm, Fine division 0.001mm, Coarse stroke 37.7mm per
rotation, Fine stroke 0.1mm per rotation
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Polarizer
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360°rotatable 0°position adjustable
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Illumination
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24V/100W Halogen lamp, Brightness adjustable
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Filter
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Blue filter Φ45mm
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ND6 Neutral density filter Φ45mm
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ND25 Neutral density filter Φ45mm
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Attachment
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Video attachment
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0.01mm Micrometer
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