Lens Cap/Lens Cover
A lens cover or lens cap provides protection from scratches and minor collisions for camera and camcorder lenses. Lens covers come standard with most cameras and lenses. Some mobile camera s include lens covers, such as the Sony Ericsson W800 and the Sony Ericsson K550.
A more secure lens cap is the metal screw-in lens cap which cannot pop off a lens accidentally. Although a screw-in cap takes more time to remove in order to take a photograph than a standard lens cap, it is stronger than plastic and therefore more protective.
VY Optics is a professional manufacturer of photographic accessories,size of lens cap shown on picture is 37mm,other dimension is also available.
The lens caps are fit for Canon,Nikon,Olympus,JVC,Kadak,Fuji,Casio and so on.Beside,we supply OEM service.
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道威棱镜 |
道威棱镜详细说明如下： *材料：BK7或者其他光学玻璃 *角度公差：+/-3分 *尺寸公差：+/-0.15mm *面型：λ/8 *光洁度：20-10 *通光孔径：90% |
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窗口片（圆形&方形） |
光学窗口片的规格说明： *材料: BK7 或者其他材料 *长度公差:+/-0.01 *宽度公差:+/-0.01 *中心厚度公差:0.005mm *光洁度:80-50 to 10-5 Scratch/Dig *面型: *平行度<=1min -- 2sec *通光孔径:80% -- 100% |
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棒镜,玻璃一字镜 |
尺寸范围: 3-50mm 两端抛光、柱面抛光、全抛光 直径公差 ：+0/-0.02mm 厚度偏差 ：± 0.02mm 中心偏差 ：90% 倒角 ：0.1-0.25mm*45° 镀膜 ：按要求 材 料 ：浮法，K9 ,熔石英,蓝宝石,SF11，CaF2,MgF2及其它光学玻璃和晶体 |
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Amici prism |
The general tolerance specifications above provide a guideline regarding manufacturing capabilities for optics ranging in size from 3-76.2mm. The m... |
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分光镜 |
分光棱镜尺寸说明如下： *材料：BK7或者UV等级熔融石英 *尺寸公差：+/-0.1mm *角度公差：+/-3’or 30” *通光孔径：90% *光洁度：60/40 或者 20/10 *面型：λ/8 or λ/4 @633nm *倒角：... |
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