Canon Ultra-Wide RF 10-20 mm F4L IS STM Camera Lenses for consistent exposures throughout the zoom range, for photo and video so you can take it with you more often. Optimised, smooth, near-silent focusing for stills and video. Peripheral Coordinated Control IS stabilises photos and video – right to the corners of the frame. Glass moulded aspherical elements plus three UD elements and a Super UD element for superb quality. Use ND filters for video work and long exposures. Ergonomic, for instinctive shooting. Specifications: Image Size: Full Frame, Angle of View (Horizontal, vertical, diagonal), : 121 degrees 55′- 84 degrees, 100 degrees 25′ - 62 degrees, 130 degrees 25′- 94 degrees, Lens Construction (Elements/Groups) : 16/12, Special Optics: 1x SUD, 3x UD, 3x Gmo Apherical (1 element both UD/Aspherical), Number of Diaphragm Blades: 9, Minimum Aperture: 22, Closest Focusing Distance (m): 0.25, Maximum Magnification (x): 0.12 (at 20mm), 0.06 ( at 10mm), Control Ring: Yes, Image Stabilizer OIS1: 5, Image Stabilizer IBIS x OIS2: 6, AF Actuator: STM, Coatings: ASC, Super Spectra, SWC, Fluorine: Front, Lens Cap: Lens Cap 10-20, Lens Case/Pouch: LP1219, Rear End Cap: Lens Dust Cap RF, Extender Compatibility: Not Compatible, Dust/Moisture Resistance: Yes3, Filter Diameter (mm): Rear-mounted gelatine filter (35x20mm), Max. Diameter x Length (mm)4: 83.7 x 112, Weight (g): 570g.