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

MELVILLE, NY, October 11, 2023 – Today, Canon U.S.A., Inc., a leader in digital imaging solutions, announced the launch of the RF10-20MM F4 L IS STM lens, a full-frame ultra wide- angle lens that can help the work of a professional photographer or serious enthusiast stand out from the crowd.

Opening the door to supreme full-frame visual possibilities, the RF10-20MM F4 L IS STM lens continues Canon’s respected reputation for optical excellence associated with L-series lenses. This new addition enhances optical performance with a modern mirrorless lens design that is fully equipped with key features, including:

New Image Stabilization (IS) technology, to help minimize wide-angle “fluttering” at outer areas of frame
Impressively compact size and light weight (1.25lbs/570g) at half the weight of EF series 11-24mm f/4 L lens
Super quiet Canon STM focus drive motor, which is ideal for video and marking the first time this technology appears in a Canon L-series lens

Speaking directly to the professional video and stills visual storyteller, the RF10-20MM F4 L IS STM features a built-in lens hood and lens function button on the barrel for customizing functions such as AF settings, Pre-Recording, Zebras and more. For landscapes, cityscapes, architectural, real estate and weddings, the RF10-20MM F4 L IS STM lens is a widely important lens for any professional to have at the ready.

Pricing & Availability

The Canon RF 10-20mm f/4L IS STM begins shipping on November 2, 2023.

Technical Specifications

Optical DesignLens Construction16 elements in 12 groupsSpecial Elements1 super UD lens, 3 UD lenses and 3 aspheric lensesLens CoatingCanon SSC (Super Spectra Coating), SWC (Subwavelength structure coating), ASC (Air Sphere Coating), Fluorine coating.Filter Size DiameterNone (inserted in gelatin filter holder at the rear of the lens)Aperture Blades9Image Stabilization5.0 stops correction with In-lens Optical Image Stabilization (6.0 stops correction with EOS R series in-body coordinated Image stabilization)FocusingFocusing Drive SystemCanon STM (Leadscrew type STM)Full-time Manual FocusingYes(Supports both ONE SHOT AF and SERVO AF with compatible EOS R-series cameras)Dual Pixel CMOS AF Coverage@999br/> (Horizontal x Vertical)• EOS R5 — Approx. 90% x 100% (Approx. 100% x 100% when using face and tracking-priority)• EOS R — Approx. 88% x 100%• EOS R7/R10 — Approx. 90% x 100% (approx. 100% x 100% when subject is detected, or with Whole Area AF active)Exterior DesignControl RingYes, with click stops(click stops can be removed by a Canon service facility, for a fee)Manual Focus RingElectronic ring system• Full-time Manual focus possible• No physical limit to ring rotational angleAF/MF SwitchYes; AF/MFMF/Control Ring SwitchNoDistance ScaleNone (Electronic distance scale possible in viewfinder or LCD monitor, with compatible EOS R-series cameras)Distance Limiter SwitchNoneDust / Weather Resistant ConstructionYesDimensions, WeightMaximum Outer Diameter x LengthApprox. ø3.3 in. (ø83.7mm) x 4.4 in. (112mm)WeightApprox. 20.1 oz. / 1.3 lbs. / 570gAccessoriesLens hoodbuilt into lens bodyLens Cap(Front) Canon Lens Cap 10-20 (Bundled)Dust CapCanon Lens Dust Cap RF (Bundled)Lens CaseCanon Lens Case LP1219 (Bundled)Extension TubesNone (No Canon RF mount extension tubes)Close-up Lenses 250D / 500DNot CompatibleCanon RF Extender 1.4x/2xNot compatibleCanon Gelatin Filter Holder III/IVNot compatible — gelatin filter holder on the rear of the lens.

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