Canon Patent: 14-35mm f/2.8 For Full Frame EOS R Cameras

Canon Patent

Here is a new Canon patent application, this time for. 14-35mm f/2.8 lens for the RF mount and full frame cameras.

Canon patent application 2024058439 (Japan, published 4/25/2024) discusses optical formulas for a 14-35mm f/2.8 lens.

From the patent literat

  • An object of the present invention is to provide a negative lead type wide-angle zoom lens that is compact, is equipped with an anti-vibration group, and has high optical performance over the entire zoom range.
  • BACKGROUND ART In recent years, zoom lenses used in imaging devices are desired to have a wide angle of view, high optical performance over the entire zoom range, and be compact. Patent Document 1 discloses a negative lead type zoom lens in which a lens group with negative refractive power is arranged on the object side as a zoom lens whose entire system is compact and can easily widen the angle of view.
  • The present invention provides a negative lead type wide-angle zoom lens that is compact, is equipped with an anti-vibration group, and has high optical performance over the entire zoom range.

Example 1

  • Focal length: 14.42-33.91
  • F value: 2.88
  • Half angle of view: 52.67-32.54
  • Image height: 18.91-21.64
  • Total length: 154.50-145.20
  • Back focus: 17.88-37.9

More Canon patents are listed here.

[via asobinet]

Canon RF 14-35mm f/4L IS Review (excellent all-day walk-around lens)

Canon RF 14-35mm F/4L IS Review

Here is a new Canon RF 14-35mm f/4L IS review.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • Three UD Elements
  • Three Aspherical Elements
  • Air-Sphere and Fluorine Coatings
  • Nano USM AF System
  • Optical Image Stabilizer
  • Customizable Control Ring
  • Rounded 9-Blade Diaphragm

Photography Blog posted their Canon RF 14-35mm f/4L IS review. They gave the lens a 4.5/5 rating and a “Highly Recommended”. From their conclusion:

Optically, both the centre and edge sharpness are very high throughout all of its focal length range. Sure, you don’t get the faster maximum aperture of f/2.8 offered by the RF 14-35mm F4L IS USM and therefore quite the same shallow depth-of-field effects, but this lens is much smaller, lighter and crucially cheaper whilst offering the same build quality and feature set.

Chromatic aberrations are almost completely absent, distortion is very well controlled, and flare is notably absent even when shooting directly into the sun. The only notable optical issue is some obvious vignetting at 14mm.

[…] In summary, the RF 14-35mm F4L IS USM is an excellent all-day walk-around addition to the Canon RF lens range that we’d recommend to most users of the system, unless you’re absolutely sure that you really do need the maximum F/2.8 aperture of the RF 15-35mm F2.8L IS USM and you don’t mind paying the significant extra for it.

Read the review at Photography Blog…

More Canon RF 14-35mm f/4L IS coverage is listed here.

Canon RF 14-35mm F/4L IS:

America: B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE

Click here to open the rest of the article

Canon RF 14-35mm F/4L IS Review (a beauty delivering lovely results)

Canon RF 14-35mm F/4L IS Review

Here is a Canon RF 14-35mm F/4L IS review. A rather enthusiastic review, we might add.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • Three UD Elements
  • Three Aspherical Elements
  • Air-Sphere and Fluorine Coatings
  • Nano USM AF System
  • Optical Image Stabilizer
  • Customizable Control Ring
  • Rounded 9-Blade Diaphragm

ePhotozine posted their full Canon RF 14-35mm F/4L IS review. They gave the lens a 5/5 rating and an “editor’s choice” mention. From their conclusion:

Some lenses just gel and just get on with the job, performing flawlessly and smoothly and not getting in the way of image-making. This is such a lens; what a beauty it is and what lovely results it delivers.

The extra 1mm compared to the existing 15-35mm lens should not be underestimated, as such a difference is much more significant in an ultra-wide than, say, the difference between a 100mm and 105mm lens would be. The loss of 1 stop of speed does mean a lighter, more compact lens that also costs significantly less. This makes a good choice for travel photography.

In summary, a superb offering from Canon and without doubt an ‘Editor’s Choice’.

Read the review at ePhotozine

Canon RF 14-35mm F/4L IS:

America: B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE

Click here to open the rest of the article

Canon RF 14-35mm f/4L IS In Stock At Canon Store

Canon RF 14-35mm F/4L IS

Not easy to find the Canon RF 14-35mm f/4L IS lens. The Canon Store now has it in stock.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/4 to f/22
  • Three UD Elements
  • Three Aspherical Elements
  • Air-Sphere and Fluorine Coatings
  • Nano USM AF System
  • Optical Image Stabilizer
  • Customizable Control Ring
  • Rounded 9-Blade Diaphragm

The Canon Store has the recently announced RF 14-35mm f/4L IS in stock and ready to ship at $1,699. Do you want this lens? Then act fast.

World-wide links (good luck):

America: B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE

Canon RF 14-35mm f/4L IS Added To List Of Lenses Having Supply Shortage

RF 14-35mm F/4L IS

It seems demand for the new Canon RF 14-35mm f/4L IS is higher than Canon can fulfill.

Canon Japan posted a product notice where they point out that the Canon RF 14-35mm f/4L IS (and other lenses, see below) are having supply shortage.

We have received more orders than expected for each of the following products, and it will take some time before delivery.

We thank you for your many orders and apologize for any inconvenience caused to our customers. Thank you kindly look forward for your understanding.

[Applicable products]

・ RF 100-500mm F4.5-7.1 IS USM

・ RF 100mm F2.8 L MACRO IS USM

・ RF4 00mm F2.8 L IS USM

・ RF 600mm F4 L IS USM

・ Ring type tripod mount E (B)

・ RF 14-35mm F4 L IS USM

Pre-orders for the Canon RF 14-35mm f/4L IS are available but it seems uncertain when the lens will be delivered. An August 2021 shipping start was predicted by Canon. If you are interested in the Canon RF 14-35mm f/4L IS it might be a good idea to act quickly.

America: B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE

[via asobinet.com]

Canon Announces The Canon RF 14-35mm f/4L IS Lens, Sells At $1699

RF 14-35mm F/4L IS

As anticipated yesterday, no Canon EOS R3 announcement today. However, the Canon RF 14-35mm f/4L IS is finally here and it sells at a bit more than I thought ($1,699).

Preorders are live at major resellers, the lens will ship in August 2021:

America: B&H Photo, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE

Canon press release:

Canon Introduces New RF 14-35mm f/4L 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 RF 14-35mm f/4L 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 stopsiof optical Image Stabilization is built-in, and Coordinated IS with cameras such as the EOS R6 and EOS R5 delivers up to 7 stopsiiof 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.