Cine lens for X Mount cameras. Image sensor standard: APS-C, Super35. Lens mount: Fujifilm X-Mount. Filter thread diameter: 67 mm. Combination of ED glass and high-refractive lenses for excellent optical performance. Suitable for close-up and portrait photography. The Sirui Nightwalker 55 mm T1.2 S35 is an outstanding addition for professional photographers and filmmakers who demand the highest standards of image quality and creativity. With an impressive light intensity of T1.2 and specifically designed for Super35 cameras, this lens opens up new photographic possibilities in low light conditions and allows for precise control of depth of field. The Sirui Nightwalker 55 mm T1.2 S35 combines exceptional optical performance with innovative technology to capture your creative visions with stunning sharpness and depth of field. Large image circle. The maximum image circle of 55 mm lenses is 34 mm. It is large enough to cover the sensor size of common S35 cameras, contributing to the capture of brilliant images. Ideal for low-light shooting. Reducing light usage in low-light conditions makes you a fast-paced filmmaker. Additionally, there is no need to use an extremely high ISO value, allowing you to achieve a pure night scene with minimal noise. Due to the great optical performance, the image remains sharp even at maximum aperture. Compact size. The minimum weight of a single lens with advanced optical construction is only 585 g, ushering in a new era of lightweight, fast lenses. Furthermore, the robust aluminum alloy construction helps protect the internal optical elements.