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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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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铌酸锂晶体 |
晶体结构：三方，a=b=5.148 ,c=13.863 生长方法：提拉法(CZ) 熔点：1250℃ 比重：4.64g/cm2 居里温度：1142±2℃ 莫氏硬度：55 热膨胀系数： a11=15.4×10-6/K a33=7.5×10-6/K ... |
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Lens Hood/Lens Shade |
In photography, a lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare an... |
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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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阿米西棱镜 |
我们的阿米奇棱镜如下规格： *材料BK7或紫外级石英 *尺寸公差+ /毫米的 *清除孔径> 80％ *表面质量：60/40划痕/挖 *表面平整度在633nmλ/ 4 *角度公差60度+ / -3分钟 *倒角0.3毫米+ /毫米的米 *涂料可选 |
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