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Do You Care About A RF 400mm f/4 DO IS That Might Be Announced In 2024?

November 15, 2023
Canon Lens Rumors
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Nab 2023 Canon Eos R5 Mark Ii Canon Eos R8 Mark Ii Canon EOS Rf 24-50mm R6 Mark Ii Rf Mount Eos R6 Mark Ii Rf 300mm Rf 35mm Canon Eos R100 Rf 24mm F/1.8 Rf-s Canon Eos R7 Eos R100 Canon High Resolution Eos R R10 Eos C5 Canon Canon Eos R1 Eos R5c Canon Rf 16mm Rf 35mm F/1.2L EF Lenses Tilt-shift Lenses Rumor

I do not. It’s just another educated speculation about what mighty and secretive Canon might do in the future.

Rumor has it that Canon is set to announce an RF 400mm f/4 DO IS lens “some time in 2024”:

[…] Canon will once again bring a DO branded lens to the RF mount, in the form of an RF 400mm f/4 DO IS USM. The lens is coming some time in 2024, and will continue to improve on Canon’s DO lens designs.

So, next month’s rumors about the RF 400MM F/4 DO IS will likely be about not having or indeed having the DO (Diffractive Optics). Boring.

Go out snapping photos, it’s better ;-)

Oh, and if you want to learn how to navigate all those rumor sites without seeing ads and getting tracked, I have a neat tutorial for you.

Source: Canon Rumors

Canon EOS R1 And EOS R5 Mark II Now Rumored Not To Have A Global Shutter

November 14, 2023
Canon Rumors
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It’s always funny when rumor sites discredit their own rumors. What a fancy game!

The same sites which previously claimed the not yet released Canon EOS R1 and Canon EOS R5 Mark II might have a global shutter, are now stating that an ” extremely reliable source” told them they will not have a global shutter. Guess there will be enough time before announcement to switch back to “might have a gobal shutter” for one last time. Just to make people curious, of course:

It was suggested that readout speeds will be good enough to make the advantages of a global shutter less prominent, while maintaining the expected image quality in the next generation prosumer and flagship camera bodies. The same source claims that Canon’s next image sensors will have bigger advancements in performance than we’re used to from a new generation of Canon consumer sensors.

Don’t waste your time with rumors, go out snapping pics instead.

Source: Canon Rumors

Canon RF 28mm F2.8 STM Review (surprisingly complete pancake lens)

November 13, 2023
Canon News
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Here is a Canon RF 28mm F2.8 STM review by one of the most serious gear reviewers I know.

At a glance:

Full-Frame | f/2.8 to f/22
Classic Wide-Angle Prime
Gear-Type STM AF Motor
Super Spectra Coating
Three Aspherical Elements
Customizable Control Ring
AF/MF Control Switch
Full-Time Manual Focus Capability
Rounded 7-Blade Diaphragm

Dustin Abbott posted his exhaustive Canon RF 28mm F2.8 STM review. In the conclusion he writes:

It’s been a while since I’ve been excited by a new non-L Canon lens, but I really like the Canon RF 28mm F2.8 STM. It’s far from a flawless lens, but it is a surprisingly complete one for a pancake lens. This is a lens that doesn’t take up much more room than a front cap for your camera, and yet can produce any number of stunning images.

Pancake lenses are fun because they give you a completely different perspective on your larger cameras. They are discrete and “cute” in a way normal lenses are not. Not everyone loves the 28mm focal length, but I dare you to try out this particular lens and focal length and discover just how useful it can be.
[…] I can get even better images with this lens on the superior Canon EOS R5 sensor, and the RF 28mm F2.8 is easily sharp enough to handle that high resolution point. There haven’t been many lenses on Canon RF to date that quality as a bargain, but this just might be one. At $299 USD, it’s not incredibly cheap, but it is a lot of lens (at least in one sense) for the money!

I recommend you check out the full review at Dustin Abbott’s, because it is worth your time, especially if you are looking forward to purchase this lens. Sample photos shot with this lens are here. For all those who prefer to watch a video review, below you find the full review in video.

Canon Rf 28mm f2.8 STM:

America: B&H Photo, Adorama, 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 Patent: Cooling And Image Stabilization For Cinema EOS-like Body

November 10, 2023
Canon Patents
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Here is a new Canon patent application, about cooling and image stabilisation in a Cinema EOS camera body.

Canon patent application 2023163923 (Japan, published 11/10/2023) discusses methods and technology for a cooling structure and an image stabilisation system for what appears to be a Cinema EOS camera body.

From the patent literature:

An object of the present invention is to provide an imaging device that is miniaturized, can arrange a portion that can provide an image stabilization function for an imaging section, and can rapidly cool an imaging element.
BACKGROUND ART
In recent years, imaging devices have been achieving higher image quality such as higher resolution and higher frame rate of recorded images. In such imaging devices, the signal processing load and power consumption during image recording tend to increase, and as a result, electronic components such as the imaging section and the data recording section generate significant heat. Since the performance of electronic components within an imaging device may deteriorate at high temperatures, it is necessary to cool the electronic components. The imaging device described in Patent Document 1 includes an imaging element and a heat radiating component, and is configured to cool the imaging element by forcibly air cooling the heat radiating component. The imaging device described in Patent Document 2 is configured such that a cooling device is attached to the outside of the main body of the imaging device in order to forcibly air-cool the imaging device. In addition, some imaging devices are known that have an anti-vibration function that detects vibrations transmitted from the outside and cancels the vibrations based on the detection results. This anti-shake function allows you to record high-quality images.
However, in the imaging device described in Patent Document 1, the area where the heat dissipation components are cooled is a limited area of a part of the casing, so it is difficult to sufficiently cool the image sensor . There is a risk. Furthermore, in the imaging device described in Patent Document 2 , there is a risk that the size will increase due to the attachment of a cooling device.
The present invention has been made in view of the above problems. SUMMARY OF THE INVENTION An object of the present invention is to provide an imaging device that is miniaturized, can arrange a portion that can provide an image stabilization function for the imaging section, and can quickly cool an imaging element.
Effects of the Invention
According to the present invention, while achieving miniaturization, it is possible to arrange a portion that can exert an anti-vibration function for the imaging section, and the imaging device can be quickly cooled.

More Canon patents are listed here.

[via asobinet]

Canon Patent: TS-R 180mm F3.5 And TS-R 100mm F2.8 Lenses

November 9, 2023
Canon Patents
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There must be a tilt-shift lens for the RF mount on Canon’s release radar, given all these pertinent patents we are seeing. I am pretty sure that soon the clickbaiters out there will break the news with rumors about…tilt-shift lenses for the RF mount.

Canon patent 2023162714 (Japan, published 11/9/2023) discusses optical formulas for two tilt-shift lenses for the RF mount:

TS-R 180mm F3.5
TS-R 100mm F2.8

From the patent literature:

[Problem] To obtain an optical system that can greatly tilt an in-focus object surface while reducing composition shift while the entire system is small.
BACKGROUND TECHNOLOGY: Photography that focuses on an object surface that is tilted with respect to a direction perpendicular to the optical axis is called tilt photography. In tilt photography, it is necessary to greatly tilt the surface of the object in focus in order to expand the range of image expression.
As an optical system for realizing this photographing, an imaging optical system equipped with a tilt mechanism is known.
On the other hand, in an imaging optical system having a tilt mechanism, the composition shifts (hereinafter also referred to as “composition shift”) when the system is tilted, which may impair convenience.
On the other hand, an imaging optical system is known that includes a plurality of lens sections that move in a direction perpendicular to the optical axis direction (Patent Document 1). In Patent Document 1, during tilt photography, the lens section A moves in a direction perpendicular to the optical axis direction, and the lens section B moves in a direction perpendicular to the optical axis direction so as to correct the shift effect generated in the lens section A. By moving the lens in the vertical direction, it is possible to take tilted shots with small composition shifts.
An imaging optical system that includes a plurality of lens units that move in a direction perpendicular to the optical axis direction as in Patent Document 1 moves the lens unit in a direction perpendicular to the optical axis direction during tilt photography. Aberrations occur due to optical eccentricity. The amount of aberration caused by this eccentricity increases as the amount of inclination of the object surface for tilt photography increases. In Patent Document 1, since the lens group A that moves in the direction perpendicular to the optical axis direction has negative refractive power, the height from the optical axis of off-axis light incident on the lens section B increases, and the lens The amount of eccentric aberration that occurs when portion B is decentered increases. Furthermore, since the height of the off-axis light from the optical axis increases, the diameter of the lens portion B increases. Therefore, it becomes difficult to increase the eccentricity of the lens portion B, and as a result, it is difficult to greatly tilt the object surface that is in focus.
Accordingly, an object of the present invention is to provide an optical system that can greatly tilt the object surface in focus while reducing composition shift while the entire system is small, and an imaging apparatus having the same.

Example 1