Fujifilm Interchangeable Fujinon Fixed Focal 35mm Low Temperature Aperture F XF35MMF2 R WR S X-series Lens, Length, Standard, Compact, F/2, Dustproof,

F-number (wide-angle side): F2 Lens construction: 6 elements in 9 groups Standard lens with splash-proof, dustproof, and -10°C low-temperature resistance. Even when shooting at an open aperture of f/2.0, it's possible to achieve the rich contrast and high resolution images characteristic of a prime lens. By incorporating two aspherical lenses, a compact optical design is achieved.