At f/2.0, the Laowa 15mm f/2 Zero-D is one of the fastest and most distortion-free super wide-angle lenses on the market for Canon R full-frame cameras. The optical construction of the 570g lightweight and 9cm long lens consists of 12 elements in 9 groups, including 2 aspherical elements and 3 elements with extra low dispersion. The patented optical design successfully minimises distortion and chromatic aberration while delivering outstanding optical performance right into the corners of the image. The ultra-wide and fast lenses on the market are normally very large and usually have a dome-shaped front lens. This is particularly problematic for landscape photographers who often use filters. Venus Optics has also responded to their needs and managed to develop a lens with a flat front element that allows a 72mm filter thread. This means that normal 72mm screw-in filters can be used. Thanks to the super-short focusing distance of 15cm, this lens also offers photographers the opportunity to take sharp pictures of close-up objects and, thanks to the large f/2.0 aperture, to create wide-angle shots with beautiful bokeh.