Canon RF 10-20mm f/4 L IS STM Mirrorless Camera Lens

The Canon RF 10-20mm f/4 L IS STM lens is a state-of-the-art ultra-wide zoom built for Canon RF-mount full-frame mirrorless cameras. With a constant f/4 aperture, up to 6 stops of Coordinated IS, near-silent STM autofocus, and Canon L-series optical excellence, it delivers professional-quality results for landscape, architecture, interior, nature, and video production — with a minimum focus distance of just 25cm for dramatic ultra-wide close-ups.

Key Features

• Constant f/4 maximum aperture for consistent light transmission and exposure throughout the zoom range
• 1 Super UD + 3 UD elements eliminate chromatic aberration and colour fringing for outstanding edge-to-edge clarity
• 3 aspherical elements correct spherical aberrations and distortion for sharp, accurate rendering
• Advanced ASC (Air Sphere Coating) and SWC (Subwavelength Structure Coating) minimise flare and ghosting for superior contrast
• Built-in IS provides 5 stops of shake correction; up to 6 stops with Coordinated IS on IBIS-equipped EOS R cameras
• Near-silent STM leadscrew-type AF motor — ideal for video and quiet shooting environments
• Full-time manual focus override for precise creative control
• Configurable Control Ring for direct adjustment of aperture, ISO, and exposure compensation from the lens barrel
• Minimum focus distance of just 25cm at all focal lengths — enables dramatic ultra-wide close-up shots
• Rear insert-type gelatin filter slot for ND and creative filters
• 9-blade diaphragm for smooth, pleasing bokeh
• Built-in petal-shaped lens hood; Canon L-series dust- and moisture-resistant construction

Technical Specifications

• Mount: Canon RF (full-frame compatible)
• Focal Length: 10–20mm
• Maximum Aperture: f/4 (constant)
• Minimum Aperture: f/22
• Aperture Blades: 9
• Optical Construction: 1 Super UD, 3 UD, 3 aspherical elements; ASC + SWC coatings
• Image Stabilisation: Optical IS (5 stops); up to 6 stops with Coordinated IS
• Autofocus: STM leadscrew-type with full-time MF
• Minimum Focus Distance: 0.25m (all focal lengths)
• Filter: Rear gelatin insert (no front filter thread)
• Weight: 600g
• SKU: 6182C005AA | Barcode: 4549292220582

What's in the Box

• Canon RF 10-20mm f/4 L IS STM Lens
• Front and rear lens caps
• Built-in petal-shaped lens hood
• Rear gelatin filter cutting template

Why Buy from Foto Discount World

• Authorised Canon dealer in South Africa
• Special pricing at R51,279 (was R53,899) — tax inclusive, saving R2,620
• Expert advice: call 012 548 5651 or email sales@fotodiscountworld.co.za
• Pre-order available — contact us to confirm stock and lead times
• Trusted by South African landscape, architecture, and video professionals