A question that I personally wanted to be answered has been answered at The-Digital-Picture with the help of Canon USA.

The answer is actually quite interesting.

What is the Canon RF 100-500mm F4.5-7.1 L IS USM Lens’s maximum aperture opening at 400mm?

Answer 1: When the camera is set to 1/3-stop increments, the maximum 400mm aperture is f/6.3.

Answer 2: When the camera is set to 1/2-stop increments, the maximum 400mm aperture is f/5.6.

Keep in mind that on variable aperture lenses, the camera doesn’t read what the exact aperture is

I would hypothesize that the lens is actually something like f/6 at 400mm and the increment settings just decide how the camera reads the aperture. Rarely are apertures 100% accurate on variable aperture lenses. I haven’t yet seen a patent with this exact optical formula to know what it is at 400mm from a design point of view.

Hopefully, Canon makes it easy to switch between 1/3 and 1/2 increments when using the Canon RF 100-500mm f/4.5-7.1L IS USM with your EOS R5 & EOS R6.

As with any rumor site, once products are announced the inevitable question is what’s next? I have some information about what’s next, but there is still some areas of the Canon lineup I don’t have much information about.

RF Lenses

• RF 50mm f/1.8 IS STM
• RF 70-200mm f/4L IS USM
• RF 18-45mm IS STM
• RF 100-400mm IS USM
• RF 24mm f/2.8 IS STM Macro

I expect that both the RF 50mm f/1.8 IS STM and RF 70-200mm f/4L IS USM will be announced in late August or early September, but I have not confirmed that as of yet.

The other 3 lenses are likely being held over to 2021.

There are other L lenses in the pipeline too, likely for late 2020 or early 2021.

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It is being reported to myself and others that Canon is going to be releasing feature updates to both the Canon EOS R5 and Canon EOS R6 via firmware.

Rumored Canon EOS R5 Firmware Update:

• FullHD 120p
• Adding a low bitrate mode for RAW & IPB in all recording modes
• Canon Log 3

I do find the mention of FullHD at 120p confusing, as the Canon USA site shows FullHD 120p as a feature already.

The Canon USA Pro Twitter account says it’s supported.

Full HD 120fps is supported. The EOS R5 specification information been updated at: https://t.co/il1l11jr50

— Canon USA Pro (@CanonUSApro) July 11, 2020

However, Canon’s own specification PDF doesn’t mention FullHD at 120p.

Rumored Canon EOS R6 Firmware Update:

• Adding All-I for all record modes
• Canon Log 3

When these firmware updates are coming is unknown at this time, but I do expect Canon to put some marketing behind any feature updates that may be coming for each camera.

MELVILLE, N.Y., July 9, 2020 – With anticipation at a fever pitch, Canon U.S.A. Inc., a leader in digital imaging solutions, is excited to introduce the company’s next generation of full-frame mirrorless cameras – the EOS R5 and EOS R6. These groundbreaking cameras are the result of many years of collecting and listening to feedback from Canon users and are sure to meet the needs and demands of a variety of creators. The EOS R5 is a camera designed for professional applications featuring a new 45-megapixel full-frame CMOS sensor and uncropped 8K video recording up to 29.97 fps. The EOS R6 is geared towards advanced amateurs featuring a 20.1-megapixel full-frame CMOS sensor and 4K video recording up to 59.94 fps. The addition of the EOS R5 and the EOS R6 cameras within the EOS R series lineup further solidifies Canon’s commitment to providing the equipment needed for users to bring their content to the next level.

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MELVILLE, NY, July 9, 2020 – After taking the time to create your ideal photo, every creative image maker should look to complete the process with a vibrant print to share for everyone to admire. Completing the lineup of professional printer options from 13 inches through 60 inches, Canon U.S.A., Inc., a leader in digital imaging solutions, unveils today the new 13-inch Canon imagePROGRAF PRO-300 Inkjet Printer along with a new Premium Fine Art Rough paper. Providing an improved workflow and high-quality output within a smaller footprint compared to previous models, this new printer excels at professional printing performance. Combined with the new Premium Fine Art Rough paper that features a textured surface to express the depth of an image, the printer along with the paper introduces a new powerhouse professional imaging duo that meets creators’ demands.

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Cameras

• Canon EOS R5 Body $3899
• Canon EOS R5 w/24-105mm f/4L IS USM $4999
• Canon EOS R6 Body $2499
• Canon EOS R6 w/24-105mm f/4-7.1 IS STM $2799
• Canon EOS R6 w/24-105mm f/4L IS USM $3599

Lenses

• Canon RF 85mm f/2 IS STM Macro $599
• Canon RF 100-500mm f/4.5-7.1L IS USM $2699
• Canon RF 600mm f/11 IS STM $699
• Canon RF 800mm f/11 IS STM $899
• Canon RF 1.4x Teleconverter $499
• Canon RF 2.0x Teleconverter $599

Accessories

• Canon BG-E10 Battery Grip $349
• Canon WFT-R10 Wifi Grip

Printers

• Canon ImagePROGRAF Pro-300 $899

Pricing in USD has finally leaked out ahead of tomorrow’s official announcement of the Canon EOS R5, Canon EOS R6, and lenses.

Canon EOS R bodies to be announced tomorrow

• Canon EOS R5 $3899
• Canon EOS R5 w/24-105mm f/4L IS USM $4999
• Canon EOS R6 $2499
• Canon EOS R6 w/24-105mm IS STM $2899
• Canon EOS R6 w/24-105mm f/4L IS USM $3599

Canon RF lenses to be announced tomorrow

• Canon RF 85mm f/2 IS STM $599
• Canon RF 100-500mm f/4.5-7.1L IS USM $2699
• Canon RF 600mm f/11 IS STM $699
• Canon RF 800mm f/11 IS STM $899

Here are more (no video information) specifications for the Canon EOS R6.

Canon EOS R6 Specifications:

● Equipped with a full-size CMOS sensor with an effective pixel count of approximately 20.10 million pixels, which is customized based on the sensor equipped with “EOS-1D X Mark III”. High image quality and high-speed continuous shooting are achieved by the high-speed signal readout of the CMOS sensor, high-speed processing of the new video engine “DIGIC X”, and high-performance “RF lens”.
● When shooting with the electronic shutter, high-speed continuous shooting of up to about 20 frames/second is achieved with AF/AE tracking. You can shoot without worrying about the shutter sound in scenes such as facing wild animals and playing golf.
● When shooting with the mechanical shutter/electronic front curtain, high-speed continuous shooting of up to approximately 12 frames/sec.
● AF performance is improved as “dual pixel CMOS AF II” by high-speed signal readout of the new CMOS sensor and high-speed processing of new image engine. When “Face + Tracking priority AF” is set, the distance measurement area is expanded to a maximum of approximately 100% (vertical) x maximum 100% (horizontal) of the screen. Furthermore, when shooting still images, the AF frame is automatically selected from a maximum of 1053 divided areas.
● Supports the detection of human eyes, faces, and heads. Compared with “EOS R”, the detection performance of smaller eyes and profile is improved. In addition, it can detect the eyes, face, and the whole body of animals (dogs/cats/birds) to improve the capture rate of subjects.
● Achieved the EV-6.5 low-brightness focus limit for the first time in the EOS series. Achieves highly accurate focusing even in a dark environment where it is difficult for the naked eye to see the subject.
●High-speed AF of up to approximately 0.05 seconds is achieved by optimizing the drive control of “Dual Pixel CMOS AF II” and “RF lens”.
● Uses the AF algorithm installed in the “EOS-1D X Mark III”. Comfortable shooting with “Case 1 to 4”, which are preset with “subject tracking characteristics” and “trackability against speed changes” according to the scene, and “Case A (Auto)” that automatically switches according to the subject Realized.
● The CMOS sensor reduces noise and the image engine improves noise reduction performance, achieving a standard ISO sensitivity of up to 102400 when shooting still images.
● Supports still image/video recording in the “HDR PQ” method based on human visual characteristics. HEIF (10bit) recording that was done with RAW development software is realized in the camera.
● “Face lighting correction” is newly added to the auto writing optimizer function during RAW development. When the contrast of the face is high, it is possible to automatically correct the brightness of the face.
● “Strength” is added to the “Digital Lens Optimizer” that corrects lens aberrations.
● The built-in high-definition electronic viewfinder (EVF) with approximately 100% field of view that employs an organic EL panel with approximately 3.69 million dots. By setting the display frame rate to “119.88fps (smoothness priority)”, it is easier to chase moving objects.
●For the first time in the EOS series, a correction mechanism that moves the image sensor in response to camera shake is adopted in the body. Achieves in-body image stabilization with 5 axes: horizontal rotation axis/vertical rotation axis/rotation axis/left/right/up/down. Even with a lens that does not have an image stabilizer, you can shoot comfortably from wide-angle to telephoto, depending on the combination of camera and lens.
● The world’s highest 8.0-stop image stabilization is achieved by the coordinated control of the optical image stabilization mechanism on the lens side and the in-body image stabilization mechanism. Comfortable shooting is possible even in shooting environments where camera shake is likely to occur, such as telephoto shooting and handheld shooting.
●When shooting movies, in addition to the coordinated control of the camera shake correction mechanism inside the body and lens, it is also possible to use a movie electronic IS together.
● 4K/60P video is achieved by oversampling without cropping, enabling delicate video expression with reduced moire and noise that cause image quality degradation.
● Full HD/120P high frame rate video for smooth video expression.
● When shooting 4K/Full HD, smooth AF with “Dual Pixel CMOS AF II” is possible.
● Equipped with Canon’s original Log-Gamma “Canon Log”, which has a proven track record in video production equipment “CINEMA EOS SYSTEM”. By gently suppressing the crushing of dark areas and highlight highlights, it is possible to record videos with a high degree of freedom in editing and processing after shooting.
● Supports Wi-Fi/Bluetooth(R) connection to mobile devices such as smartphones.
● Equipped with an automatic image transfer function from the camera to “image.canon”. You can automatically transfer still images to “Google Photos” or “Adobe Creative Cloud” (membership plan) via “image.canon”.
● Equipped with a shutter unit that has achieved shutter durability of 300,000 actuations. You can choose to open or close the shutter curtain when the power is off.
● A dustproof and drip-proof structure is adopted to prevent water droplets and sand dust from entering the camera. In addition, a lightweight and highly rigid polycarbonate resin is used for the exterior, achieving both reliability and mobility.
● Equipped with dual slots for SD memory cards (UHS-II compatible).
● Equipped with a multi-controller that allows intuitive AF frame selection.

Compatible Lenses

• Canon RF lens group (excluding EF, EF-S and EF-M lenses)
• When using Mount Adapter EF-EOS R: Canon EF or EF-S lenses (excluding EF-M lenses) Lens Mount

Processor

• DIGIC X

Sensor & Image Type

• CMOS sensor (compatible with Dual Pixel CMOS AF) Effective Pixels
• Approx. 20.1 megapixels Screen Size
• Approx. 36.0 x 24.0 mm Pixel Unit
• Approx. 6.56 micro m square Total Pixels
• Approx. 21.4 megapixels Aspect Ratio
• 3:2 (Horizontal: Vertical) Color Filter System
• RGB primary color filters Low Pass Filter. Installed in front of the image sensor, non-detachable Recording Format
• Compliant to Design rule for Camera File system 2.0 and Exif 2.31 Image Format
• JPEG, HEIF, RAW / C-RAW (CR3), C-RAW (Canon original) ; Movies: ALL-I (Time-lapse video only), IPB, MP4

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Here are the more specifications (no video information) for the Canon EOS R5. As for the video features, I think we know just about everything about the Canon EOS R5.

Canon EOS R5 Specifications

With the newly developed effective pixel number of 45 million pixels full-size CMOS sensor high-speed signal readout, high-speed processing of new image engine “DIGIC X”, high performance “RF lens”, the highest resolution performance in EOS series history Achieves both high image quality and high-speed continuous shooting.
● AF performance is improved as “dual pixel CMOS AF II” by high-speed signal readout of the new CMOS sensor and high-speed processing of new image engine. When “Face + Tracking priority AF” is set, the distance measurement area is expanded to a maximum of approximately 100% (vertical) x maximum 100% (horizontal) of the screen. Furthermore, when shooting still images, the AF frame is automatically selected from a maximum of 1053 divided areas.
● Supports the detection of human eyes, faces, and heads. Compared with “EOS R”, the detection performance of smaller eyes and profile is improved. In addition, it can detect the eyes, face, and the whole body of animals (dogs/cats/birds) to improve the capture rate of subjects.
● The low brightness focusing limit of EV-6 is achieved. Achieves highly accurate focusing even in a dark environment where it is difficult for the naked eye to see the subject.
●High-speed AF of up to approximately 0.05 seconds is realized by optimizing the drive control of “Dual Pixel CMOS AF II” and “RF lens”.
● Uses the AF algorithm installed in the “EOS-1D X Mark III”. Comfortable shooting is possible with “Case 1 to 4”, which have been preset with “Subject tracking characteristics” and “Tracking characteristics with respect to speed changes” in advance according to the scene, and “Case A (Auto)” that automatically switches according to the subject. Realization.
● When shooting with the electronic shutter, high-speed continuous shooting of up to about 20 frames/second is achieved with AF/AE tracking. You can shoot without worrying about the shutter sound in scenes such as facing wild animals and playing golf.
● When shooting with the mechanical shutter/electronic front curtain, high-speed continuous shooting of up to approximately 12 frames/sec.
● The built-in high-definition electronic viewfinder (EVF) with a field-of-view rate of about 100% that employs an organic EL panel of about 5.76 million dots. By setting the display frame rate to “119.88fps (smoothness priority)”, it is easier to chase moving objects.
● “DIGIC X” realizes maximum ISO51200 (equivalent to extended ISO: 102400) when shooting still images.
● Supports still image/video recording in the “HDR PQ” method based on human visual characteristics. HEIF (10bit) recording that was done with RAW development software is realized in the camera.
● “Face lighting correction” is newly added to the auto writing optimizer function during RAW development. When the contrast of the face is high, it is possible to automatically correct the brightness of the face.
● “Strength” is added to the “Digital Lens Optimizer” that corrects lens aberrations.
● The world’s first internal recording of 8K/30P video is realized by the high-speed signal readout of the CMOS sensor and the high-speed processing of the new video engine “DIGIC X”. Supports internal recording of movies in RAW data (12 bit) at 8K.
● Realizes 4K/120P high frame rate video shooting, enabling smooth video shooting.
● High-quality 4K video can be generated from 8K rich data. Realize 4K/30P video by oversampling without cropping.
●In 8K/4K/full HD shooting, we realize smooth AF by “dual pixel CMOS AF II”.
●Cannes can be used for rich-gradation video expression by utilizing Canon’s original Log gamma “Canon Log”.
●For the first time in the EOS series, a correction mechanism that moves the image sensor in response to camera shake is adopted in the body. Achieves in-body image stabilization with 5 axes: horizontal rotation axis/vertical rotation axis/rotation axis/left/right/up/down. Even with a lens that does not have an image stabilizer, you can shoot comfortably from wide-angle to telephoto, depending on the combination of camera and lens.
● The world’s highest 8.0-stop image stabilization is achieved by the coordinated control of the optical image stabilization mechanism on the lens side and the in-body image stabilization mechanism. Comfortable shooting is possible even in shooting environments where camera shake is likely to occur, such as telephoto shooting and handheld shooting. When shooting movies, in addition to the coordinated control of the camera shake correction mechanism inside the body and lens, it is also possible to use the movie electronic IS together.
● Supports Wi-Fi/Bluetooth(R) connection to mobile devices such as smartphones. For the first time in the EOS series, it is compatible with the 5 GHz band wireless LAN standard as Wi-Fi with a built-in camera, enabling high-speed and stable communication.
● In addition to FTP and FTPS, when using the wireless file transmitter “WFT-R10B”, it is possible to transfer by SFTP, realizing highly secure communication compatible with new authentication and encryption communication technology.
● Equipped with an automatic image transfer function from the camera to “image.canon”. You can automatically transfer still images to “Google Photos” or “Adobe Creative Cloud” (membership plan) via “image.canon”.
● Equipped with a shutter unit that achieved shutter durability of 500,000 actuations. You can choose to open or close the shutter curtain when the power is off.
● A dustproof and drip-proof structure is adopted to prevent water droplets and sand dust from entering the camera. In addition, a highly rigid magnesium alloy body that achieves both robustness and lightweight ensures high reliability.
● Equipped with dual slots for CFexpress card (Type B) and SD memory card (UHS-II compatible).
● Equipped with a multi-controller that allows intuitive AF frame selection.

Compatible Lenses

• Canon RF lens group (excluding EF, EF-S and EF-M lenses)
• When using Mount Adapter EF-EOS R: Canon EF or EF-S lenses (excluding EF-M lenses) Lens Mount

Processor

• DIGIC X

Sensor & Image Information

• CMOS sensor (compatible with Dual Pixel CMOS AF) Effective Pixels
• Approx. 45.0 megapixels Sensor Size
• Approx. 36.0 x 24.0mm Pixel Size
• Approx. 4.40 micro m square Total Pixels
• Approx. 47.1 megapixels Aspect Ratio
• 3:2 (Horizontal: Vertical) Color Filter System
• RGB primary color filters Low Pass Filter Installed in front of the image sensor, non-detachable.
• Compliant to Design rule for Camera File system 2.0 and Exif 2.3 Image Format
• JPEG, HEIF, RAW (CR3, 14-bit RAW format), C-RAW (Canon original); Movies: ALL-I, IPB, RAW Image Processor

Read more…