Product Description Name 15mm T2.1 Zero-D Cine Focal Length 15mm Max. Aperture T2.1 Angle of View 110° Format Compatibility Full Frame Lens Structure 12 elements in 9 groups (2pcs of Aspherical Elements 3pcs of Extra-low Dispersion Elements) Aperture Blades 5 Min. Focusing Distance 15cm Max. Magnification 1:4 Filter Thread 77mm Dimensions 84.8 x 91.2 mm Weight 540g Mounts Sony FE, Canon RF, Nikon Z MTFOptical Structure