Feature: 1. T1. 05 Large Aperture: Stepless aperture design, equipped with imprinting slide mode, to ensure that the video picture is exposed too smoothly. It can also maintain high image quality in low light environment. 2. 270° Ultra Long Focusing Stroke: The design of stepless focusing gear and ultra long 270 ° focusing stroke can be adapted to various focus followers, which can focus accurately during shooting and make the focus move more delicate. 3. Quick Lens Change: The size, length and diameter of the series film heads are almost the same, and the positions of focusing ring and aperture ring are the same. It ensures that when using this series of film lenses, the accessories do not need to be reinstalled, and the stabilizer does not need too much balance adjustment. 4. Low Breathing Effect: By improving the lens structure design, the film lens has a good control over the breathing effect, which can reduce the focal length offset during shooting. Maximum aperture T1.05, minimum T16 aperture, 13 aperture blades, easy to obtain soft out of focus scattered view, making the picture more vivid and not stiff. 5. Durable Material: The use of all metal materials ensures that the optical elements inside the lens will not be damaged in daily small rubs and small bumps and in harsh environments. This is a manual lens. You need to enable M mode in the camera settings and turn on the release shutter without lens function. Specification: Item Type: Large Aperture Cinema Lens Material: Metal, Optical Glass Weight: Approx. 1451g / 51.2oz Lens Mount: for FX Format: APS C Aperture Blade: 13 pieces Filter Size: 82mm / 3.2in Focal Length: 25mm / 1.0in Aperture: T1.05-T16 Lens Structure: 11 Elements in 9 Groups Viewing Angle: 58.6° Latest Focusing Distance :0.23m / 9in Aperture Ring: Stepless Aperture Camera Stabilization: No Stabilization Focusing Mode: Manual Focusing Compatible for Fuji FX Mount Camera: for X-H1, X-T3, X-T4, X-T20, X-T10, X-T2, X-T200, X-Pro2, X-T1, X-T100, X-E1, X30, X70, X-M1, X-S10. Package List: 1 x Large Aperture Cinema Lens1 x Front Lens Cover (Installed)1 x Rear Lens Cover (Installed)1 x Manual7 x Screw