"Laowa 7.5mm f/2 MFT This lens is currently the widest rectilinear lens currently in the market for Micro Four Thirds Cameras. It gives an field of view equivalent to 15mm lenses in 35mm sensors. This allows MFT users to enjoy an impressive 110deg. ultra wide angle of view for a wide range of shooting needs despite the 2x crop factor. The wide angle of view and ultra-fast aperture are extremely valuable for astro-photography. This lens is super compact and lightweight for casual on-the-go use. A ultra-light version is also available for aerial photography usage. Ultra Wide and Fast with Superb Optical performance The Laowa 7.5mm f/2 MFT is the widest f/2 rectilinear lens ever designed for Micro Four Thirds Cameras. Despite the extreme specifications, Venus Optics has successfully minimized the weight of the lens to a less than 200g and 55mm long. The optical performance and distortion is controlled to its finest. Perfect for Astro, Architecture and Landscape photography The extreme 110 angle of view and ultra-fast f/2 aperture allows photographers to create impressive astro-photography shots with ease. It also gives photographers a fast and wide-angle option for low-light shooting as well as landscape photography. Compact, Light, Easy to install filters The lens comes with a 46mm filter thread which can gives additional portability for landscape photography with screw-in filters. Light-weigh|Ultra Wide and Fast with Superb Optical performance|Perfect for Astro, Architecture and Landscape photography|Compact, Light, Easy to install filters|Light-weight option for Aerial Photography"