Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE

Canon RF-S 3.9mm F3.5 STM DUAL FISHEYE Specification Brand Canon Model Number 6578C002 Product Name RF-S3.9mm F3.5 STM Dual Fisheye Lens for Select EOS-R Series Cameras Color Black Brand Compatibility Canon Lens Mount Compatibility Canon RF Lens Format Coverage Full-Frame Angle of View 144° Tripod/Monopod Mountable No Lens Series Canon RF-S Product Weight 0.64 pounds Product Length with Lens Closed 2.1 inches Product Diameter 4.4 inches Lens Type Fish Eye Auto/Manual Focus Automatic, Manual Silent Focus No In-Lens Image Stabilization No Minimum Focal Length 3.9 millimeters Maximum Focal Length 3.9 millimeters Minimum Focus Distance 7.9 inches Magnification 1:33.33 Macro Reproduction Ratio 0.03x Magnification Optical Design 11 Elements in 8 Groups Aperture/Iris Blades 7 Maximum Aperture f/3.5 Minimum Aperture f/16 Constant Aperture No Special Features Each lens has 11 elements in 8 groups with two UD glass elements and 7 aperture blades. Filter Diameter 30.5 millimeters Protective Qualities None Filter Size Gel Filter (Rear) Dimensions ø: 4.4 x L: 2.1″ / ø: 11.2 x L: 5.3 cm