AF 56 /1.7 XF/Z is an auto focus lens suitable for X-mount/Z-mount, with 11 elements in 9 groups.the focus distance is about 0.55m-∞, and noiseless STM focus motor can accurately control the moving position and bring accurate and smooth focusing. * 56mm focal length, F1.7 aperture * 9 groups of 11 optical structures, including 4 ED lenses, 3 lenses with high refractive index * Electronic aperture,internal focus mechanism, supports autofocus * Precision hardened aluminum alloy bayonet * Quiet STM focus motor, fast and accurate focusing * Convenient and light * Supports multiple camera shooting modes and EXlF information transmission

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