Product Description Product Name 12mm f/2.8 Lite Zero-D FF Format Full Frame Focal Length 12mm Aperture f/2.8-22 Angle of View 122° Lens Structure 16 pieces in 9 groups Aperture Blades 5 blades/ 14 blades Closest Focusing Distance 14mm Maximum Magnification 0.21x Focus Mode MF/ AF Filter Thread ⌀72mm Size ⌀77mm*76.5mm Weight AF E：377g AF Z：390g MF RF: 480g MF L: 475g Mounts AF: E/Z (5 blades) MF: E/R/Z/L (14 blades) R/L ( 5 blades)