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Specifications
Model M51B
Total Magnification
20X, 40X, 100X
Eyepieces
W10X/15.5mm, diopter adjustable, with reticle
Reticle
Scales with crosslines
Division: 50um with 20X; 25um with 40X, 10um with 100X
Objectives
DIN 2X/0.05, 160/-
DIN 4X/0.1, 160/0.17
DIN 10X/0.25, 160
Focusing Mechanism
Rack and pinion, focusing knobs on both sides, with limit ring
Working Distance
15 mm (9/16”) with 20X
16.5 mm (5/8”) with 40X
7.5 mm (5/16”) with 100X
Field of View
8.5mm with 20X
4.2mm with 40X
1.8mm with 100X
Illumination
Flashlight, on 2 AAA batteries
Dimension
Height: 24 cm (9-1/2”) at highest condition with eyepiece on
Bottom diameter: 6.3 cm (2-1/2”)
Net weight
0.7 kg (1lb 8oz)
