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China, Chinese Hot Sale 8X21 Folding Roof Prism Binoculars (BM-4002)1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Optical Lens InstrumentTelescope BinocularsBinocularDcf Binoculars
Ningbo Barride Optics Co., Ltd.
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Product Description Hot sale 8X21 folding roof prism binoculars (BM-4002)Magnification8Objective diameter(mm)21mmExit pupil diameter(mm)2.6mmField of view (1,000m)131mEye relief10mmFocus SystemCenter FocusPrism systemroofPrism glassBK7Optical coatedYesMaterialsMetal, plastic, rubberColorCamoNet weight175gSize9.2×6.2×4.0cm8x magnification: This means the binoculars can magnify an object 8 times larger than the naked eye.21mm objective lens: This is the diameter of the front lens element, and it determines how much light the binoculars can gather. While smaller than some other binoculars, this size makes the binoculars more compact and lightweight.
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