TTArtisan 50mm F1.4 ASPH Full Fame Large Aperture for Leica M Focal Length:50mm An included safety cable should

An included safety cable should be used to hang the power adapter on the light stand

which can well reduce the probability of dust ingress under various environmental conditions

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With 8 power levels (ranging from1/128 to full power)and high-speed stroboscopic modes

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TTArtisan 50mm F1.4 ASPH Full Fame Large Aperture for Leica M Focal Length:50mm An included safety cable shouldOnly suitable for mirrorless cameras, not suitable for DSLR cameras. Key Features Leica M Mount Lens Aperture Range: f 1. 4 to f 16 One Double Sided Aspherical Element One Abnormal partial dispersion Element, Eight HR Elements Good Quality Even At The Edge 50mm f1. 4 lens adopts the optical structure of 10 elements in 8 groups, including one aspherical element and eight high refractive index elements, help to suppress distortion and spherical