至于nikon DX镜多数系冇光圈环(G lens),有AFS内置摩打, 只系nikon既做法,跟DX镜既构做冇直接関连. 而最后输出影像既大细亦系body既事,跟镜头无阕.
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G-LENS 自聚焦透镜 ; 透镜
converging g lens 凸透镜 ; 会聚透镜
diverging g lens 凹透镜
collecting g lens 聚光透镜
condensing g lens 聚光透镜
copying g lens 翻拍镜头
scanning g lens 扫描透镜
reducing g lens 缩小镜
It investigates the focal switch phenomenon of a tilted phase L-G beam passing through a system with the aperture and lens separated.
研究了相位倾斜l - G光束通过光阑——透镜分离系统的焦开关现象。
Refinements in lenses (e. g. , the Fresnel lens) and reflectors made it possible to substantially increase the light's intensity.
而利用透镜和反光镜的辅助设备可使灯光强度倍增。
The meniscus lens 202 May be manufactured from, e. g., BK7, B270, SF10, SF57 or F2 glass, sapphire, plastic, acrylic, silicone, epoxy, or any other suitable material capable.
弯月透镜202可由(例如)BK 7、B270、SF10、F57或F 2玻璃、蓝宝石、塑料、丙烯酸、硅酮、环氧树脂或任何其它可以的适当材料制造。
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