| Type: | Twin zooming objective optical system |
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| Total magnification: | 8x ~ 35x (4x ~ 70x by replacing eyepiece and/or auxiliary objective lens) | 7x ~ 30x (3.5x ~ 60x by replacing eyepiece and/or auxiliary objective lens) |
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| Eyepiece: | SM 10xB eyepieces (F.N. 21), SM 15xB eyepieces (F.N.14), SM 20xB eyepieces (F.N. 12) |
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| Zoom range: | 0.8x ~ 3.5x (Zoom ratio: 4.4:1) | 0.7x ~ 3x (Zoom ratio: 4.3:1) |
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| Auxiliary objective lens: | AL0.5x, 0.7x (optional) |
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| Working distance: | 100mm (standard configuration), 127.5mm (AL0.7x), 181mm (AL0.5x) |
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| Eyepiece inclination: | 45º | 60º |
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| Optical system: | True erect image, 12º inner bevel, independent adjustment of right and left eyepieces, and 54 to 75mm interpupillary adjustment |
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| Weight (Zooming body): | Approx. 1.0kg | Approx. 1.1kg |
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