Features 1、Wide Compatibility: Suitable for M mount cameras such as for M, M240, M3, M6, M7, M8, M9, M9p, and M10, ensuring wide compatibility and the ability to record wonderful images. 2、Standard Portrait Lens: Featuring a golden 50mm focal length, this lens is perfect for capturing portraits, landscapes, street photography, and more, delivering outstanding background blur and sharpness. 3、Larger Aperture: With a wide F1.1 aperture, this lens allows for greater light intake, enabling you to achieve dreamy background blur and create beautiful photos with remarkable visual impact. 4、7 Layer Optical Coating: The lens is equipped with a 7 layer optical coating and a refractive index of 1.9, effectively reducing glare and producing clearer and more vibrant images. 5、Multiple Optimizations: Through meticulous corrections of spherical and chromatic aberrations, this lens excels in controlling dispersion for large aperture lenses, resulting in excellent contrast and sharpness at the focus point. Specification Item Type: Prime Lens Material: Metal frame, optical glass Weight: Approx. 536g/18.9oz Filter Diameter: 58mm Focal Length: 50mm Aperture: F1.1 to F16 Frame: Full Frame Anti Shake Function: No anti shake function Refractive Index: above 1.9 Nearest Focusing Distance: 0.5m/1.6ft Lens Structure: 6 groups and 7 pieces Aperture Blades Number: 11 Focus Mode: Manual focus, auto focus (for A7II A7RII with adapter ring only) Lens Mount Type: for M mount Package List 1 x Prime Lens 1 x Front Lens Cap (Installed) 1 x Rear Lens Cap (Installed) 1 x Cleaning Cloth