This is a wide-angle lens with a large aperture that combines lightness with high image quality, allowing you to take pictures more efficiently and with greater spatial awareness. It is ideal for astrophotography, landscape, architecture, portraits and video. The AF 16mm F1.8 reproduces fine image detail with a groundbreaking ultra-wide angle of view. The ultra-high resolution takes image quality to a new level. At ultra-wide viewing angles, the F1.8's wide aperture can also achieve an ultra-short depth of field, producing admirable and beautiful bokeh, creating an artistic perspective and a sense of spatial compression. Smooth transition between sharp focus and soft out-of-focus. With the STM stepper motor, autofocus performance has been raised to a higher level, providing the powerful operating power needed for precise focusing and tracking, supporting eye focus, face focus, etc. Achieve more powerful and stable autofocus. Stepless aperture ring design supports manual aperture adjustment, making video recording more comfortable. There's no need to lower the camera for adjustment during shooting, and the aperture ring damping is smooth and even, so you don't have to worry about accidental contact. A built-in LCD display shows the selected aperture, focus distance and depth of field at the corresponding aperture and focus distance. The lens has 2 configurable buttons, with the Fn1 button you can set a custom key function on the Sony camera (some cameras are not compatible) and camera functions can be used with the Fn2 button. The AF 16 MM F1.8 FE is made entirely of metal, and the bayonet mount has a USB-C connector for possible future firmware updates. Specifications Mount type: E-mount Lens element: 15 lenses 12 groups Viewing angle: 105.06 degrees Maximum aperture: F1.8 Minimum aperture: F22 Aperture blades: 9 rounded Minimum focusing distance: 27 cm Filter size: 77 mm Focusing mechanism: STM Lens size (diameter/length): 85mmx103mm Weight: 565 g HD Nano water and dirt repellent coating;Aperture ring with step/stepless button;Silent STM focusing motor;Built-in LCD display with distance and aperture information;2 configurable buttons