Used Canon RF 10-20mm f/4.0 L IS STM Lens

SKU: US1851843

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Reviews about this item

Review Summary

2025-05-03T20:00:00

Rated 5 out of 5

Not cheap but it's good

Nice to have L quality wide angle glass when needed.

Swellhunter

2025-03-04T19:00:00

Rated 5 out of 5

Lovely wide lens - everything I expected

Superb. Lovely and precise - I am pleased I acquired this lens.

ExquisiteFacade

2024-12-29T22:46:56

Rated 5 out of 5

Great Lens!

Love this lens so much. Incredible quality and the fisheye aspect is super fun.

JAMIE P.

2024-12-02T19:00:00

Rated 5 out of 5

Nice ultra wide angle lens

Very nice lens for landscape and interior photography. Still experimenting to learn how best to use it.

EvaH

2024-09-20T20:00:00

Rated 5 out of 5

RF 10-20

On back order for long but luckily got it somewhere before the trips with no regret with the extra wide angle coverages. Excellent RF lens.

HC888

2024-09-16T20:00:00

Rated 5 out of 5

RF 10-20, A wide angle zoom built for photo and video

Love the Canon RF 10-20 MM Lens. It has opened up an new area of wide angle distortion free photography that I've not experienced before. It is well constructed and quiet enough to use for Video with the Canon on Camera Mic.

Paul M.

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Canon RF 10-20mm f/4 Specifications

Lens
  • Focal Length

    10-20mm

  • Maximum and Minimum Aperture

    f/4 - f/22

  • Lens Mount Type

    Canon RF Mount

  • Lens Format

    Full Frame

  • Compatible Cameras

    Canon EOS R-series, full-frame and APS-C (focal length equivalent to approx. 16-32mm when used on an APS-C camera)

  • Minimum Focusing Distance

    9.8" (0.25m)

  • Maximum Magnification

    0.12x (at 20mm)

  • Field of View, at Minimum Focus Distance

    Approx. 20.5 x 13.7" (520 x 347mm) at 10mm; 11.2 x 7.4" (284 x 189mm) at 20mm

  • Angle of View (Diagonal)

    Approx. 130 Degree 25'- 94 Degree

Optical Design

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  • Lens Construction

    16 elements in 12 groups

  • Special Elements

    1 super UD lens, 3 UD lenses and 3 aspheric lenses

  • Lens Coating

    Canon SSC (Super Spectra Coating), SWC (Subwavelength structure coating), ASC (Air Sphere Coating), Fluorine coating.

  • Filter Size Diameter

    None (inserted in gelatin filter holder at the rear of the lens)

  • Aperture Blades

    9

  • Image Stabilization

    5.0 stops correction with In-lens Optical Image Stabilization (6.0 stops correction with EOS R series in-body coordinated Image stabilization)

Focusing

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  • Focusing Drive System

    Canon STM (Leadscrew type STM)

  • Full-time Manual Focusing

    Yes (Supports both One Shot AF and Servo AF with compatible EOS R-series cameras)

  • Dual Pixel CMOS AF Coverage (H x V)

    EOS R - Approx. 88% x 100%
    EOS R5 - Approx. 90% x 100% (Approx. 100% x 100% when using face and tracking-priority)
    EOS R7/R10 - Approx. 90% x 100% (approx. 100% x 100% when subject is detected, or with Whole Area AF active)

Exterior Design

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  • Control Ring

    Yes, with click stops (click stops can be removed by a Canon service facility, for a fee)

  • Manual Focus Ring

    Electronic ring system:
    Full-time Manual focus possible
    No physical limit to ring rotational angle

  • AF/MF Switch

    Yes; AF/ MF

  • MF/Control Ring Switch

    No

  • Distance Scale

    None (Electronic distance scale possible in viewfinder or LCD monitor, with compatible EOS R-series cameras)

  • Distance Limiter Switch

    None

  • Dust / Weather Resistant Construction

    Yes

Physical

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  • Dimensions (Diameter x L)

    Maximum Outer: 3.3 x 4.4" (83.7 x 112mm) (Approx.)

  • Weight

    1.3 lbs (570g) (Approx.)

About Canon RF 10-20mm f/4.0 L IS STM Lens

Canon RF 10-20mm f/4.0 L IS STM

The RF10-20mm F4 L IS STM is a unique ultra-wide-angle lens that gives you corrected, rectilinear coverage to an incredible 10mm with full-frame cameras. Great for still photography and videography, the 10mm ultra-wide-angle effect is outstanding for its dramatic look, lending visual drama to your landscape, interior, architecture, travel, and even photojournalism images. This lens features true L-Series quality with optical and digital corrections for distortion, and optical image stabilization (OIS) for better low-light performance, especially when shooting video. Autofocus is handled by a tried-and-true STM-type focus motor which actually allows the overall lens design to be more compact while still providing rapid AF and smooth focusing during video recording.

Modern Design

The design of this lens is geared toward getting the job done efficiently with light weight, fast focusing, image stabilization, and a programmable control ring. There is even a petal-type lens hood built right into the barrel of the lens.

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Incredible Dimensions

Capturing images at 10mm is already pretty special, but to do it in a lens that is lighter and smaller than even our own EF11-24mm f/4 L USM is quite a feat. The RF mount design allows for the possibility of this wider-angle lens range and is also a key factor in the size and weight reduction of the lens. This also enables the addition of IS (image stabilization) in a lens that otherwise might not be able to have it.

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Excellent Image Quality

Again, thanks to the Canon RF lens mount, the RF10-20mm F4 L IS STM lens offers great optical quality. Its optical design includes one super UD element, three UD elements and three aspheric elements (including large-diameter aspheric and UD aspheric elements) as well as Subwavelength structure coating (SWC) and Air Sphere Coating (ASC) to reduce ghosting. On top of that, this lens features the same dust- and water- resistance found on L-series lenses with seals around the Control ring, focus ring, zoom ring, operation panel, and lens mount.

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Make Some Movies

The RF10-20mm F4 L IS STM lens has a lot of advantages and features when it comes to video. First, you can take full advantage of the 10mm focal length on full-frame cameras, and you can even shoot 4K 60p without crop mode. If you are shooting on an APS-C camera, you’ll have access to wider angles than you ever have before (coverage equivalent to a 16-32mm lens). Another video advantage is the fixed f/4 aperture, minimizing exposure changes while zooming.

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Optical Image Stabilization - Up to 5.0 stops of Shake Correction

For consistently sharp results, the RF10-20mm F4 L IS STM features built-in optical Image Stabilization, providing enhanced shake reduction for up to 5.0 stops of shake correction. When paired with an EOS R-series camera that has In-Body Image Stabilization (IBIS), the Coordinated IS allows for up to 6.0 stops of correction. Steady hand-held video, and incredibly sharp still images, are the benefits of this new RF ultra-wide-angle lens.

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High-speed, Smooth and Quiet Autofocus

With any Canon EOS R-series camera, expect swift and positive autofocus. The STM leadscrew-type focus drive system is especially beneficial to video users, because of its combination of quiet operation and outstanding smoothness of focus changes during actual recording. And AF during still shooting is quick and equally quiet.

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Get Close

With a minimum focus distance of just under 10 inches you can capture some really incredible ultra-wide-angle close-ups for a look unlike anything else.

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Features

  • RF ultra-wide angle lens for full-frame cameras - especially suited to a mirrorless design, this lens is compact, well-balanced and smaller than previous digital SLR ultra-wide lens designs
  • Incredible 10-20mm coverage for stills and video with full-frame EOS R series cameras
  • Excellent image quality: highlights include 1 super UD lens, 3 UD lenses, 3 aspheric lenses with Subwavelength structure coating (SWC) and Air Sphere Coating (ASC) to reduce ghosting
  • Minimum focus distance of approx. 9.8" (0.25m) with a maximum magnification of 0.12x
  • Canon leadscrew type STM (stepping motor) focus drive, especially suited for smooth, quiet video AF operation
  • Optical image stabilization - up to 5.0 stops of shake correction. Up to 6.0 stops Coordinated IS when paired with EOS R series cameras featuring In-Body Image Stabilizer (IBIS)
  • Rear slot for pre-cut gel filters
  • Petal-type hood integrated into the lens barrel