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

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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]

Here Are The IDs Of Four Registered Yet Unannounced Canon Products

canon rumors canon news eos r7 mark ii canon eos rv
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Canon registered four products that have not yet been announced. All four refer to video gear, according to a blogger from Cina.

Usually well informed Weibo user E8M_8888 posted the list of the registration IDs:

  • ID174 registered on April 19, 2024
  • ID179 Registered on February 04, 2024
  • DS126922 Registered on February 04, 2024
  • DS126928 Registered on March 29, 2024

Now the funny part. E8M_8888 writes (machine translated):

Some influential overseas entry stations form a unique point of view in order to snatch information without knowing the history of Canon products and then making a conclusion. Here I want to correct it: ID sequence registration information is all video products.

If you wonder what or who the “influential overseas entry stations” are, it’s the well known hysterical rumor sites we all know 😀. According to E8M_8888 they are all wrong in their speculations: all four IDs refer to video gear. The products have been registered at a WiFi registration authority.

Time will tell. In the meantime forget rumors and go out snapping photos.

Finally: SIGMA Launches Interchangeable Lenses for Canon RF Mount

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I guess many of us were waiting for this: the possibility to use Sigma’s excellent lenses natively on the EOS R system, i.e. RF mount. Well, it seems we are there.

Control algorithm including AF drive and communication speed optimization has been developed specifically for Canon RF Mount interchangeable lenses. In addition to realizing high-speed AF, the lens also supports AF-C (Continuous AF), in-camera aberration correction and in-camera image stabilization. The mount is rubber-sealed to cater for use in a variety of environments.

Sigma press release:

SIGMA Corporation (CEO: Kazuto Yamaki) is pleased to announce the upcoming launch of interchangeable lenses for Canon RF Mount system. This addition allows users to enjoy high performance, and high quality SIGMA lenses in native mount on their Canon RF Mount system.

Lineup

For detailed product information, please refer to the links below.

[ Launch in July 2024 ]

SIGMA 18-50mm F2.8 DC DN | Contemporary

Petal Type Lens Hood (LH582-02) supplied

Product information：https://www.sigma-global.com/en/lenses/c021_18_50_28/

[ Launch in fall of 2024 and onwards ]

SIGMA 10-18mm F2.8 DC DN | Contemporary

Push-on Petal Type Lens Hood (LH706-02) supplied

Product information：https://www.sigma-global.com/en/lenses/c023_10_18_28/

SIGMA 16mm F1.4 DC DN | Contemporary

Petal Type Lens Hood (LH716-01) supplied

Product information：https://www.sigma-global.com/en/lenses/c017_16_14/

SIGMA 23mm F1.4 DC DN | Contemporary

Petal Type Lens Hood (LH554-01) supplied

Product information：https://www.sigma-global.com/en/lenses/c023_23_14/

SIGMA 30mm F1.4 DC DN | Contemporary

Lens Hood (LH586-01) supplied

Product information：https://www.sigma-global.com/en/lenses/c016_30_14/

SIGMA 56mm F1.4 DC DN | Contemporary

Lens Hood (LH582-01) supplied

Product information：https://www.sigma-global.com/en/lenses/c018_56_14/

* These products are developed, manufactured and sold under license from Canon Inc.

Canon EOS R8 Review (does a lot of things really well, D. Abbott)

Canon EOS R8 review
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Here is a Canon EOS R8 review by our favourite gear reviewer.

Canon EOS R8 at a glance:

  • 24.2MP Full-Frame CMOS Sensor
  • 4K60p 10-Bit Internal Video, Canon Log 3
  • 2.36m-Dot OLED Electronic Viewfinder
  • 3.0″ 1.62m-Dot Vari-Angle Touchscreen
  • Dual Pixel CMOS AF II
  • 40 fps Electronic Shutter
  • Movie Digital IS
  • Vertical Movie Mode
  • Microphone Input, Headphone Output
  • Multi-Function Shoe, Wi-Fi & Bluetooth

Dustin Abbott reviewed the Canon EOS R8, and here are his findings. Please note that Mr. Abbott’s review are thorough and exhaustive and you shouldn’t stop at what we feature here. The review covers everything you might want to know about the EOS R8 and I encourage you to have a closer look. From the conclusion:

[given its price] the EOS R8 is destined to be one of Canon’s best selling cameras. Most of the time the camera options near this price point have a smaller APS-C sensor, so this will almost certainly entice some people to take the plunge to the larger full frame sensor and the resulting image quality that comes with it.

If you like the form factor of the EOS RP but are ready for an upgrade, the EOS R8 is a great option. It has a much better sensor, a much better focus system, and far better video specs (this was a real weakness in the EOS RP). There are still some limitations, but this camera does a lot of things really well and can make beautiful images…and be a lot of fun doing it.

My single greatest regret here is the lack of in-body-image-stabilization, as this has become a fairly ubiquitous feature on competing cameras and some of Canon’s best lens matches for this camera don’t have lens stabilization. But other than that I definitely prefer the Canon EOS R8’s ergonomics to, say, Sony’s a7C series of cameras, and the Canon costs less, too. 

Read the review at dustinabbott.net

Mr. Abbott also provides a video-review, see below.

There a lot of people who likes to be called “reviewer”. Dustin Abbott is one of the few I check when I am about to buy new gear. More Canon EOS R8 review stuff is listed here.

Canon EOS R8: [shoplist 70746]

Canon Released A New Specialised Imaging Sensor, The LI5030SA

LI5030SA
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Canon has released the LI5030SA, an imaging sensor for industrial and scientific applications, like microscopes, automation, surveillance, machine vision, to name a few.

The Canon LI5030 features a global shutter that simultaneously exposes all 19MP of the sensor’s resolution. Perfect for subject moving with high speed, like propeller blades (seen in countless videos to demonstrate artefacts caused by a rolling shutter). he sensor delivers 5688 x 3334 video resolution at 57.99 fps and 12bit via 24 channels of digital signal output. The LI5030SA family has these siblings: LI5030SAC (color), LI5030SAI (RGBIR, raffic monitoring cameras and industrial cameras that can simultaneously capture visible and near infrared areas), LI5030SAM (monochrome), and LI5030SAN (Naked, no microlens or color filter for electron microscopes and X-ray detection cameras).

Element structureimage size35mm full size
Effective number of pixels5688(H)×3336(V)
pixel size6.4μm×6.4μm
package182pin ceramic LCC
filter typeRGB, Mono, RGB-IR, Naked
Basic drive modeEffective pixel readout5688 (H) × 3336 (V) 12bit 57.99fps

New Canon Firmware For Five Telephoto Lenses (1200mm, 800mm, 600mm, 400mm, 100-300mm)

RF 1200mm f/8L
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Canon released firmware updates for five telephoto lenses. Here they are.

Please note: we linked Canon Japan (machine translated) because they are the first to publish the firmware updates.

Have fun…