Specification: Lens type: prime lens Lens structure: 8 Groups 11 elements Diaphragm blades: 9 Max aperture: f1.4 Min aperture: f16 Focus Mode: Auto focus / Manual focus Focal length: 55mm Minimum Focusing Distance: 0.61m Filter size: φ52 Lens size：φ66.5mmX76mm Eye tracking focus：Support Auto Diaphragm: Support Package list: 1 x Mk-55mm f1.4 lens 2 x Front and rear protective covers 1 x Lens hood.
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