Camera Compatibility: Canon Full-Frame EOS R Series Mirrorless Cameras
Focal Length: 10–20mm
Maximum Aperture: f/4
Minimum Aperture: f/22
Autofocus Motor: STM (Stepping Motor)
Image Stabilization: Optical IS (Up to 5 stops / up to 6 stops coordinated IS)
Minimum Focusing Distance: 0.25m
Maximum Magnification: 0.12x
Filter System: Rear Gel Filter (No front filter thread)
Weight: Approx. 570g
Lens Construction: 16 Elements in 12 Groups
Angle of View: Approx. 130° – 94°
Series: Canon L-Series Ultra-Wide Zoom
Warranty: The warranty tendered hereunder, on the electronic product(s) sold under this invoice will be provided exclusively by their respective Authorized Agents/Distributors and are limited to the period indicated from the date ofyour invoice, except otherwise mentioned as per the warranty conditions as carried along with the products(s)
The CANON RF 10-20MM F/4 L IS STM LENS is a professional ultra-wide-angle zoom lens designed for Canon RF mirrorless cameras. It delivers an extremely wide 10mm field of view, making it one of the widest rectilinear zoom lenses available for full-frame systems.
Built for both photography and video, it is ideal for landscapes, architecture, interiors, real estate, and creative wide-angle storytelling. Despite its extreme width, it maintains strong optical correction with controlled distortion and high edge-to-edge sharpness.
CANON RF 10-20MM F/4 L IS STM LENS Price in Kenya
Product
Price (KSh)
CANON RF 10-20MM F/4 L IS STM LENS
288,200
CANON RF 10-20MM F/4 L IS STM LENS Full Specifications
Specification
Details
Brand
Canon
Model
RF 10-20mm f/4 L IS STM
Lens Type
Ultra-Wide Zoom
Mount
Canon RF
Focal Length
10–20mm
Maximum Aperture
f/4
Minimum Aperture
f/22
Autofocus
STM
Image Stabilization
Optical IS (5 stops / 6 stops coordinated)
Minimum Focus Distance
0.25m
Maximum Magnification
0.12x
Filter System
Rear gel filter only
Weight
~570g
Optical Construction
16 elements in 12 groups
CANON RF 10-20MM F/4 L IS STM LENS Features
Extreme 10mm ultra-wide full-frame coverage
Professional L-series optical quality
Lightweight design for its category
Built-in Optical Image Stabilization
Advanced STM autofocus for smooth video performance
Excellent edge-to-edge sharpness
Reduced distortion for rectilinear wide shots
Weather-sealed professional build
CANON RF 10-20MM F/4 L IS STM LENS Optical Performance
The lens delivers excellent sharpness and contrast across the zoom range, even at 10mm. Canon’s advanced optical design helps control chromatic aberration and distortion, making it suitable for architectural and interior work where straight lines are critical.
Its ultra-wide perspective creates dramatic compositions while maintaining professional image quality.
Advanced L-Series Optics
Rectilinear optical design featuring one Super UD element, three standard UD elements, and three aspherical elements to reduce chromatic aberration and distortion throughout the zoom range, while also providing consistent edge-to-edge sharpness and illumination.
ASC (Air Sphere Coating) and SWC (Subwavelength Structure Coating) to reduce flare, ghosting, and other aberrations for increased contrast and color accuracy.
FLC fluorine coating applied to the lens's surface effectively repels dust, water droplets, grease, and dirt, ensuring easy removal even when they adhere to the lens surface. This coating also endures a high frequency of lens surface wiping, and its antireflective effect contributes to the capture of clear images.
CANON RF 10-20MM F/4 L IS STM LENS Autofocus Performance
The STM motor provides smooth, quiet, and accurate autofocus performance. It is especially optimized for video recording, offering stable focus transitions and reliable subject tracking.
CANON RF 10-20MM F/4 L IS STM LENS Design & Build Quality
Built to Canon’s L-series standards, the lens features a compact and lightweight design for an ultra-wide zoom. It is weather-sealed for professional outdoor use and includes a rear gel filter system due to the extreme front element design.
Despite its wide field of view, it remains portable and balanced on RF mirrorless bodies.
CANON RF 10-20MM F/4 L IS STM LENS Compatibility
This lens is compatible with:
Canon EOS R5 / R6 series
Canon EOS R8 / R3 / R1 series
Canon EOS R50 / R10 / R7 (crop mode)
All Canon RF full-frame mirrorless cameras
CANON RF 10-20MM F/4 L IS STM LENS Ideal Use
Landscape photography
Architecture photography
Interior photography
Real estate photography
Travel photography
Astrophotography (wide-field shots)
Video production
Creative ultra-wide compositions
CANON RF 10-20MM F/4 L IS STM LENS Pros & Cons
Pros
Cons
Extremely wide 10mm perspective
Premium price
Excellent sharpness for ultra-wide lens
No front filter thread
Lightweight for L-series build
f/4 not ideal for very low light
Strong image stabilization
Specialized use case
Great for video and architecture
Learning curve for composition
CANON RF 10-20MM F/4 L IS STM LENS Conclusion
The CANON RF 10-20MM F/4 L IS STM LENS is a professional ultra-wide zoom that delivers extreme field-of-view capability with excellent optical performance. At KSh 288,200, it is a specialized but powerful tool for photographers and videographers who need dramatic wide-angle perspectives with professional L-series quality.
