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

The Ultimate Ultra-wide Shot

The lens builds on the capabilities of our latest RF mount as Canon’s widest RF zoom lens with an angle of view of up to 130°. Featuring a zoom that ranges from 20mm wide-angle to an exceptional ultra-wide 10mm focal length, users can now achieve a shooting area more than twice that of a 16mm focal length.

Every Detail, Just As It Should Be

Engineered to the highest standard, the RF 10-20mm f/4L IS STM incorporates the latest Peripheral Control Image Stabilisation (IS) technology which allows crystal-clear, shake-free images even in challenging shooting conditions or without tripod access. The new IS helps produce shake-free images from the centre to the edge of the frame and offers five stops of optical stabilisation or six stops in combination with an in-body stabilised camera. Its advanced rectilinear optical design means you can expect a crisp and accurate outcome – so straight lines remain straight, even at the edges of the frame, all thanks to an advanced optical formula. A constant f/4 maximum aperture provides consistent exposures at every zoom setting, and state-of-the-art optical coatings minimise ghosting and flare which can be common with ultra-wide shots.

Ultra-compact, Ultra-portable

The advanced tech comes without compromising ease of use. The RF mount provides outstanding image quality due to its compact design that boasts significantly increased communication speed and bandwidth between camera and lens compared to when using an EF mount lens and adapter.

Built For Professionals

Due to its superior image quality, greater capacity for wide-angle stills and video, and lightweight design, the RF 10-20mm f/4L IS STM is an essential upgrade for photographers and videographers looking to push their capabilities to the next level. While it’s ideal for capturing landscapes or architecture, the lens can also highlight different perspectives when shooting sports or documentaries.

Key Features

• Ultra-wide 10-20mm focal length with up to a 130° angle of view.
• Constant f/4 maximum aperture across the entire zoom range.
• Advanced Peripheral Control Image Stabilisation (IS).
• Up to 5 stops of optical stabilisation (6 stops with coordinated IBIS).
• Precision rectilinear optical design for zero-distortion straight lines.
• State-of-the-art optical coatings to combat ghosting and flare.
• Ultra-compact and portable design optimised for the Canon RF mount.

Benefits

* Capture More of the Scene: Achieve a shooting area over twice as large as a 16mm lens, perfect for sweeping landscapes and tight indoor spaces.

* Shoot Confidently in Low Light: Advanced image stabilisation allows for crystal-clear, shake-free images even when shooting handheld or without a tripod.

* Flawless Architectural Shots: The rectilinear optical formula ensures that straight lines remain perfectly straight, right to the edges of the frame.

* Consistent Exposure Control: The constant f/4 aperture means your exposure settings remain identical whether you are shooting at 10mm or zooming in to 20mm.

* Travel Lighter: Benefit from a highly portable setup without sacrificing the premium L-series image quality working professionals demand.

Specifications

• Focal Length: 10-20mm
• Maximum Aperture: f/4 (Constant)
• Mount Type: Canon RF
• Image Stabilisation: Peripheral Control IS (5 stops optical, up to 6 stops coordinated)
• Optical Design: Rectilinear
• Lens Series: Canon L-Series

FAQs

1. What type of photography is the Canon RF 10-20mm f/4L IS STM best suited for?

It is highly versatile and ideal for capturing landscapes, architecture, sports, and documentaries where a dramatic, ultra-wide perspective is required.

2. Does this lens feature built-in image stabilisation?

Yes, it features advanced Peripheral Control Image Stabilisation, providing up to 5 stops of optical stabilisation, or 6 stops when paired with an in-body stabilised (IBIS) Canon camera.

3. Will straight lines appear distorted at the 10mm focal length?

No, the lens utilises an advanced rectilinear optical design that ensures straight lines remain straight, even at the extreme edges of the frame.

4. Can I use this lens on an older Canon DSLR with an EF mount?

No, this lens is designed exclusively for Canon's mirrorless RF mount and cannot be adapted backward to fit EF mount cameras.

5. Is the aperture constant when I zoom in?

Yes, it features a constant f/4 maximum aperture, providing consistent light gathering and exposure settings throughout the entire 10-20mm zoom range.

How to Use / Care Instructions

To get the most out of your Canon RF 10-20mm f/4L IS STM, carefully align the red mounting index on the lens with the corresponding mark on your camera body and twist until it clicks securely into place. When shooting handheld in low-light environments, ensure the Image Stabiliser switch is turned on to take advantage of the Peripheral Control IS. To maintain optimal optical performance, regularly clean the front and rear elements with a dedicated lens blower and a clean microfibre cloth. Always store the lens in a dry, cool environment, preferably in a protective lens pouch or padded camera bag when not in use.