Product Details
Name： 4× Monocular / 6× Monocular Front Lens
Model No.： FDQ-2/3
Product Description： 4 The 4× monocular/6× monocular front lens features a high-quality doublet objective and symmetrical eyepiece, making it widely used in optical testing instruments.
Technical Parameters：
Objective Focal Length：80/120mm
Effective Aperture：φ20/30mm
Magnification：4×/6×
Resolution：7.5″/5″
Field of View：12°/8°
Exit Pupil Distance：19.10/17.40 mm
Exit Pupil Diameter：φ5 mm
Eyepiece Diopter Adjustment Range：±5 diopters
Lens Tube Outer Diameter：φ35/φ39mm
Dimensions l×d：137×φ35/172×φ39mm
Weight：0.45/0.6kg
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