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Canon RF 14-35mm f/4 L IS USM Lens

Martin Vronsky

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Press release:

Canon Introduces New RF14-35mm F4 L IS USM Lens Broadening Imaginative Possibilities For Still And Video

MELVILLE, NY, June 29, 2021– Canon U.S.A., Inc., a leader in digital imaging solutions, today announced the RF14-35mm F4 L IS USM lens. This dramatic new lens brings 14mm, ultra wide-angle coverage to full-frame EOS R-series users. On top of the ultra-wide capabilities, the 14-35mm zoom range is the broadest ever in a Canon wide-angle zoom for full-frame AF cameras. For many Canon users, one single lens can potentially handle all wide-angle needs, from vivid, creative ultra-wide imagery to traditional street photography.

The new wide-angle lens is designed for use within the expanding family of EOS R full-frame mirrorless cameras, including the upcoming EOS R3, currently in development. Whether you capture stills, video, or like many creatives today – both – this new wide-angle lens from Canon can help elevate users’ content game when capturing images or video in a wide variety of situations, such as landscape, architecture, and travel.

A compact overall design, and extremely modest overall weight of just 1.2 lbs. — along with excellent balance, during hand-held or even gimbal-mounted operation — add to RF14-35mm F4 L IS USM inviting character. A key feature, sure to appeal to many landscape and nature photographers, is this lens’s ability to accept conventional, 77mm screw-in filters. This is especially noteworthy on a lens for full-frame cameras with 14mm ultra-wide coverage. Additionally, the lens’s close-focusing capability is exceptional for an ultra-wide zoom of its type.

Image Stabilization further enhances the RF14-35mm’s appeal for low-light still imagery, and for steady yet striking wide video footage. Up to 5.5 stopsi of optical Image Stabilization is built-in, and Coordinated IS with cameras such as the EOS R6 and EOS R5 delivers up to 7 stopsii of shake-correction. This can mean sharper hand-held images in low light, even at extremely slow shutter speeds.

The Canon RF 14-35mm F4 L IS USM lens features a bright, constant f/4 maximum aperture, L-Series optical construction — highlighted by three UD-glass elements, and three Aspherical elements — and many of the company’s most advanced proprietary lens coatings, including Sub-wavelength Structure Coating (SWC) and Air Sphere Coating (ASC). These superb lens coatings help minimize ghosting and flaring. Lens placement and coatings are also optimized to help users get clear, high-contrast images, even when there is a bright light source either in, or immediately outside, the frame. Additional features of the Canon RF14-35mm F4 L IS USM include:

  • Compact design — Approximately 1.2 lbs. in weight.
  • Minimum focusing of 7.9 inches at all focal lengths and a maximum magnification of 0.38x at 35mm zoom setting.
  • Optical Image Stabilizer with up to 5.5 stopsi of shake correction.
  • Up to 7 stopsii of shake correction when paired with Canon EOS R series cameras that feature In-Body Image Stabilizer (IBIS).
  • High speed, smooth and quiet autofocus with Canon’s Nano USM.
  • Control Ring for direct setting changes of aperture, shutter speed, ISO speed and exposure compensation.
  • Superb dust and weather-resistance on par with other Canon L-series lenses.

Pricing and Availability
The Canon RF14-35mm F4 L IS USM lens is scheduled to be available in August 2021 for an estimated retail price of $1,699.00*. For additional information, please visit usa.canon.com.

*Specifications, availability and prices are subject to change without notice. Actual prices are set by individual dealers and may vary.

[i] Based on CIPA (Camera & Imaging Products Associations) standards. Testing performed at focal length of 35mm, using the EOS R camera.

[ii] Based on CIPA (Camera & Imaging Products Associations) standards. Testing performed at focal length of 35mm, using the EOS R5 camera.


Canon RF 14-35mm F4L IS USM specifications

Principal specifications
Lens type - Zoom lens
Max Format size - 35mm FF
Focal length - 14–35 mm
Image stabilization - Yes
CIPA Image stabilization rating - 5.5 stop(s)
Lens mount - Canon RF

Maximum aperture - F4
Minimum aperture - F22
Number of diaphragm blades - 9

Elements - 16
Groups- 12
Special elements / coatings3 UD + 3 aspherical elements, Super Spectra + Sub-wavelength Structure + Air Sphere coatings

Minimum focus - 0.20 m (7.87″)
Maximum magnification - 0.38×
Autofocus - Yes
Motor type - Nano ultrasonic
Full time manual - Yes
Focus method - Internal
Distance scale - No
DoF scale - No
Focus distance limiter - No

Weight - 540 g (1.19 lb)
Diameter - 84 mm (3.31″)
Length - 100 mm (3.94″)
Materials - Magnesium alloy
Sealing - Yes
Colour - Black
Zoom lock - No
Filter thread - 77 mm
Hood supplied - Yes
Tripod collar - No

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  • 3 months later...
  • 3 weeks later...
  • 3 months later...
  • Members
  • 00:00 - intro
  • 01:46 - RF 14-35mm design and controls
  • 04:22 - RF 14-35mm autofocus
  • 05:01 - RF 14-35mm distortion compensation
  • 10:23 - RF 14-35mm resolution landscape quality
  • 15:20 - RF 14-35mm portrait quality
  • 16:32 - RF 14-35mm bokeh balls and rendering
  • 17:26 - RF 14-35mm sunstars and diffraction spikes
  • 17:46 - RF 14-35mm video autofocus
  • 18:25 - RF 14-35mm focus breathing
  • 19:14 - RF 14-35mm vlogging comparison
  • 21:26 - RF 14-35mm verdict and sample images


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  • 1 year later...
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My experience and review using the Canon RF 14-35 f/4 L as a full time real estate and architectural photographer.
We will go over many different aspects of this lens with this in depth review.

0:00 - Intro
0:44 - Unboxing
2:27 - Build Quality
6:09 - Auto-Focus & Image Stabilizer
9:07 - Vignetting & Distortion
12:22 - Chromatic Aberration
13:58 - Flare & Sunstars
15:27 - Still Image Quality
19:41 - Alternative Selections
23:17 - Conclusion

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