Canon Patent: Air Cooling System That Also Does In Body Image Stabilization

Canon Patent

Well, that’s an interesting Canon patent application: an air-cooled heat dissipation system that also functions as IBIS (In Body Image Stabilization).

Canon patent application 2022137975 (Japan) discusses methods and technology for an air cooling system that also works for IBIS. How is that achieved? The patent literature describes a cooling method that is very similar to what is done for computer CPUs. Heat dissipation elements are mounted on the back of the imaging sensor, the cooling air passes through these elements. Extract from the patent literature (machine translated):

An imaging apparatus capable of efficiently dissipating heat generated by an imaging element movable in a direction orthogonal to an optical axis is provided.

Description of the Related Art

Conventionally, in order to improve image quality, there has been known an imaging apparatus that optically corrects image blur by moving an imaging device in a direction perpendicular to the optical axis . The image pickup device is required to have sufficient heat dissipation because the heat generated in the image pickup device affects the image quality when driving image blur correction, continuous shooting, moving image shooting, and the like.

In the configuration disclosed in Japanese Patent Laid-Open No. 2002-200013, the amount of heat radiation generated by the imaging element is determined by the thickness and width of the heat radiation sheet connected to the imaging element .

Description of the Related Art

In recent years, the amount of heat generated by an imaging device has increased due to improvements in moving image performance of imaging devices. For this reason, with the configuration disclosed in Patent Document 1, it is difficult to sufficiently dissipate the heat generated by the image pickup device, and there is a possibility that the temperature rise of the image pickup device cannot be eliminated. On the other hand, if the thickness and width of the heat dissipation sheet are increased in order to increase the amount of heat dissipation, the movement load of the imaging element increases .

SUMMARY OF THE INVENTION

Accordingly, it is an object of the present invention to provide an imaging apparatus capable of efficiently dissipating heat generated by an imaging element movable in a direction perpendicular to the optical axis.

Means for Solving the Problems

An imaging apparatus as one aspect of the present invention includes an imaging element section having a fixed unit and a movable unit movable with respect to the fixed unit ; The movable unit has an imaging element and a heat exchange member, and at least part of the heat exchange member is inserted into the duct from an opening of the duct .

Item 521 refers to the heat dissipation elements on the back of the imaging sensor

More Canon patent applications are listed here. Some particularly interesting patent applications we think might get into production are these:

[via asobinet.com]

Today Only: Save Big On Lexar 128GB Memory Cards And Sandisk 1TB SSD

Lexar 128GB

Two rather good deals at B&H Photo, but only for today. Lexar 128GB memory cards and a Sandisk 1TB SSD.

Lexar 128GB Professional 2000x Memory Card (2-Pack)SanDisk 1TB Extreme Portable SSD V2
128GB Capacity
UHS-II / V90 / U3 / Class 10
Max Read Speed: 300 MB/s
Max Write Speed: 260 MB/s
Min Write Speed: 90 MB/s
Records Full HD, 3D, and 4K Video
Can Withstand Extreme Temperatures
Built-In Write Protect Switch
1TB Total Storage Capacity
USB 3.2 Gen 2 Type-C
Up to 1050 MB/s Read Speed
Up to 1000 MB/s Write Speed
Bus Powered
256-Bit AES Hardware Encryption
IP55 Water & Dust Resistance
Carabiner Loop for Easy Transport

Get the Lexar 128GB Professional 2000x Memory Card (2-Pack) on sale at $189.99 (reg. $349.99)

Get the SanDisk 1TB Extreme Portable SSD V2 on sale at $109 (reg. $249) – I own this one and can tell it is superfast, very small, and an excellent product. Highly recommended. Will soon get another one.


More selected deals:

Canon RF 16mm f/2.8 STM Review (fun, flawed, and useful, D. Abbott)

Rf 16mm F/2.8 STM Review

Here is a Canon RF 16mm f/2.8 STM review by one of our favorite gear reviewers. This lens is inexpensive yet it delivers.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/22
  • One Aspherical Element
  • Super Spectra Coating
  • STM Stepping AF Motor
  • Customizable Control Ring
  • Rounded 7-Blade Diaphragm

Dustin Abbott posted his exhaustive Canon RF 16mm f/2.8 STM review. Many so called “reviews” out there are nothing more than rewritten user manuals. Not Mr. Abbott; his reviews are professional, thoroughly, and answer all questions you might have. From Mr. Abbott’s conclusion:

[…] the Canon RF 16mm F2.8 STM is fun, flawed, and useful. It does have some severe flaws, but I love the flexibility of the focal length and the compact size of the lens. It does something that no other lens is really doing on the Canon RF platform right now, and does it at a truly reasonable price point.

The RF 16mm is not going to compete with L series lenses optically, but I also found that images had a certain pop to them that stood out when I compared them to images I was taking on the Canon EOS R7 and EF-S 18-150mm STM that I was reviewing at the same time.  This image, for example, is pretty lovely.

So, in conclusion, the Canon RF 16mm F2.8 STM is not only worth buying because it is cheap, but also worth buying because it is competent.  It will go anywhere with you and provides a nicely wide alternative to something like the 24-105mm or 24-70mm lenses.  It would also be a great focal length counterpart if your primary lens on an outing is a telephoto, offering the option to get a wider angle of view but with a minimum of additional size and weight.  It is for this reason that I’m considering a purchase even despite the RF 16mm’s many flaws.

Read the full review at dustinabbott.net

The review comes with test charts, sample pics, and much more. As usual, D. Abbott also posts a video-review that someone might prefer to the written review. It’s here for your viewing pleasure.

Canon RF 16mm f/2.8 STM (sells at $299):

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

Click here to open the rest of the article

Today Only: Lensbaby Velvet 28mm f/2.5 Lens for Canon EF – $369.95 (reg. $649.95)

Lensbaby Velvet 28mm

Only for today (9/20/2022) B&H Photo has a 45% discount on the Lensbaby Velvet 28mm f/2.5 Lens for Canon EF mount.

At a glance:

  • EF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.5 to f/22
  • 1:2 Magnification, 2″ Working Distance
  • Soft Glowing Effect at Wide Apertures
  • Multi-Coated Elements
  • Manual Focus Design
  • 12-Blade Diaphragm

Get the Lensbaby Velvet 28mm f/2.5 Lens for Canon EF mount on sale at $369.95. Compare at $649.95.

More selected deals:

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Is This Nikon Roadmap For Real?

Nikon

An alleged Nikon roadmap is making its rounds on the Internet. Is it real or fake?

You can see the Nikon roadmap on top. Summarizing:

  • November 2022: Nikon Z 7 III with 45MP and 8K video
  • November 2022: Nikon Z 6 III with 24MP and 6K video
  • January 2023: Nikon Z 5 II with 24MP and 4K video
  • March 2023: Nikon Z 90 with 24MP
  • June 2023: Nikon Z F with 24MP
  • August 2023: Nikon Z 8 with 61MP and 8K video
  • October 2023: Nikon Z 50 II with 21MP

Any thoughts?

[via asobinet]

TTArtisan 11mm F/2.8 Fisheye Video-Review (RF Mount)

TTArtisan 11mm F/2.8

Here is a TTArtisan 11mm F/2.8 Fisheye Video-Review. The RF-mount option is reviewed.

At a glance:

  • RF-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/16
  • Fisheye Optical Design
  • Manual Focus Operation
  • Minimum Focusing Distance: 6.7″
  • 7-Blade Diaphragm
  • Built-In Lens Hood

User Qippy’s Channel on YouTube posted the TTArtisan 11mm F/2.8 Fisheye Video-Review you can watch below. Enjoy.

The is a rather inexpensive lens, you can get it for $215:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Wex Photo Video, Canon DE, Canon UK

TTArtisan 11mm f/2.8 Fisheye Overview

Offering a uniquely wide angle of view, the TTArtisan 11mm f/2.8 is a fisheye lens designed for Canon RF-mount mirrorless cameras. The expansive field of view and distinct fisheye look is characterized by immense depth of field along with strong distortion for creating very striking and dynamic imagery. The wide-angle design is also complemented by a bright f/2.8 maximum aperture, to suit working in available lighting conditions, and the lens’s manual focus design permits working with subjects as close as 6.7″ away.

Ultra-wide prime is designed for full-frame Canon RF-mount mirrorless cameras.

Fisheye design renders an immensely wide angle of view to produce distinct visual appeal characterized by dramatic distortion and a creative depiction of space.

Manual focus design permits smooth, refined control along with a minimum focusing distance of 6.7″.

Built-in petal-shaped lens hood that helps to block stray light from causing lens flare and also offers some physical protection to the front of the lens.