The Sirui Saturn 35mm T2.9 1.6x Anamorphic \[Blue Flare\] - Sony E Fit is a full-frame anamorphic lens designed for Sony E-mount cameras. It features a 35mm focal length with a 1.6x squeeze factor, which creates a wider field of view than a standard 35mm lens. The lens also has a fast T2.9 maximum aperture, which is well-suited for shooting in low-light conditions.