• Super Wide Angle Single Focus Lens with Large Aperture and High Definition: Utilizing an ultra-wide angle of 16mm focal length to achieve high resolution and beauty of blurred, making it ideal for shooting starscapes, landscapes, architecture, and rooms in narrow dark places • Ultra Wide Angle 16mm and Open F1.8 in (16 mm) - Uses 15 lenses in 12 groups, including 4 ED glass and 3 aspherical lenses, which combine high resolution with the brightness of the entire screen and F1.8 • F1.8 aperture, no dark place: Starry sky photography can effectively capture light in dark environments, and produce higher quality images using higher shutter speeds and lower ISO indexes • Effective AF Performance: Adopts STM motor, which provides quiet and fast autofocus for stills photography, and quiet and smooth autofocus for video shooting • Small and lightweight ultra-wide angle lenses: Weighs only 19.4 oz (550 g). Reform the world with a creative new perspective with an ultra-wide angle large aperture lens that can be carried anywhere