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照相机画幅尺寸
Picture sizes for still cameras
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照相镜头 照相分辨率测定方法
Method for determining the photographic resolving power of camera lenses
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照相镜头 焦距的测量方法
Method for measuring the focal length of camera lenses
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摄影镜头 杂光系数测量方法
Method for measuring the veiling glare index of photographic lenses
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照相镜头 渐晕系数及像面照度均匀度测量方法
Method for measuring the coefficient of vignetting and uniformity of image plane illuminance
价格：￥0.00
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照相镜头 有效孔径和相对孔径的测量方法
Method for measurement for effective aperture and relative aperture of camera lenses
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照相镜头 光谱透射比的测量方法
Method for determining the spectral transmissivity of camera lenses
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照相镜头光圈标记
Aperture markings of photographic lenses
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照相镜头摄影距离刻度标记
Photographic distance scale markings of photographic lenses
价格：￥0.00
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摄影用中性玻璃滤光镜
Photographic neutral-density glass filters
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