Canon has been in the mirrorless market since 2012, starting with the launch of the original EOS M APS-C camera. In 2018, they introduced the full-frame mirrorless EOS R with a different mount, but it is fair to say that none of these products pushed the boundaries in the same way as competitors such as Sony, Fujifilm or Panasonic.
In 2020, Canon decided to catch up for good with the introduction of the EOS R5 and EOS R6. There is a new sensor, 8K video, autofocus with deep learning AI, 20fps, 5-axis stabilisation with 8 stops of compensation and more. These are specifications that surpass even the competition. We’re excited to see Canon finally shaking the mirrorless market more seriously.
The two cameras were announced at the same time, so let’s see how they compare.
Canon EOS R5 and EOS R6 coverage:
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EOS R5 vs R6: What they have in common
Usually I write a quick bullet list to highlight the shared specifications found on the two cameras, but since these products are brand new, it is worth digging a bit more into some of the new technology they have.
Dual Pixel CMOS AF II
The new Canon phase detection system offers 100% coverage across the entire sensor surface when an automatic selection AF mode is used (Face/Eye detection or Tracking AF), with a maximum of 1,053 points (39x27 grid). For video, the zones used are 819 (39x21 grid).
Note that with older EF lenses or Extender type I and II, the area covered is 80%.
If you select an AF position manually (single point), the area covered is approximately 90% horizontal and 100% vertical, and there are no fewer than 6072 positions on the R6 or 5940 areas on the R5 to choose from (4968 for video)!
Focus acquisition is fast and measured at 0.05s.
Sensitivity for low light autofocus is -6Ev on the R5 and -6.5Ev on the R6, measured with a f1.2 aperture. For video, it is -5Ev.
Face and eye detection for humans is available, but the new addition is animal detection with deep learning technology. The R5 and R6 can track the body, face and eyes of cats, dogs and birds even when they are flying.
In-Body Image Stabilisation
Canon is the last brand in the mirrorless sector to introduce 5-axis stabilisation, but it looks like the wait was worth it.
The R5 and R6 can provide up to 8 stops of compensation (CIPA rating) with select IS and non-IS lenses. IBIS can work on its own, or in conjunction with optical stabilisation.
To give you an idea, the highest rating until now was 7.5Ev with the Olympus E-M1 III/E-M1X, or 6.0Ev with the Lumix S1.
What is characteristic of Canon’s system is that the camera and lens communicate back and forth. The Digic X processor of the camera body receives and analyses data from the gyro sensors and software on the lens, and the lens receives and analyses data from the sensor shift mechanism and the Digic X processor of the camera. This exchange, done at a high speed, is made possible by the 12 pin connectors of the RF mount, a characteristic that Canon has highlighted since the launch of the original EOS R camera.
The 8 stop rating is not available with every lens. Below you can how much compensation each RF lens gets:
|8 stops||24-70mm F2.8 L IS USM|
24-105mm F4 L IS USM
24-105mm F4-7.1 IS STM
28-70mm F2 L USM
85mm F1.2 L USM
85mm F2 Macro IS STM
|7.5 stops||70-200mm F2.8 L IS USM|
|7 stops||15-35mm F2.8 L IS USM|
35mm F1.8 Macro IS STM
50mm F1.2 L USM
|6.5 stops||24-240mm F4-6.3 IS USM|
|6 stops||100-500mm F4.5-7.1 L IS USM|
The stabilisation system works for video as well, to which you can also add Digital IS (electronic stabilisation) with two levels (On and Enhanced).
Continuous shooting speeds
Despite the difference in resolution, the two cameras share the same burst speeds: 12fps with the mechanical shutter, or 20fps with the electronic shutter. Continuous AF, as well as Auto Exposure, works at all speeds.
We should expect a difference in buffer performance given that the R5 has more resolution than the R6, and as a consequence larger files.
The R5 can record 180 RAW files before it starts to slow down, whereas the R6 should save 240 RAW files (measured at 12fps).
1. 45MP vs 20MP sensor
The first difference concerns the two full-frame image sensor. The EOS R5 has a brand new 45MP chip which was developed, among other things, to allow the camera to record 8K video (more on this further down).
The EOS R6 uses a variation of the 20.1MP sensor found inside the 1DX mark III flagship DSLR. Both the R5 and R6 have a low pass filter but the one on the R6 is not as advanced as the 1DX III – hence the slight difference between the two sensors.
The R5 has a normal sensitivity range of 100 to 51200 ISO. There is a Low ISO 50 equivalent and an extended High value of 102400 ISO.
Thanks to the lower megapixel count, the R6’s ISO goes up to 102400, or 204800 with the extended value.
The two cameras are the first to use the new DIGIC X Image Processor which has more high speed processing capabilities. The sensor readout speed has been improved which means that rolling shutter should be minor when using the electronic shutter or recording video.
In addition to RAW, C-RAW and JPG, the two cameras can record 10-bit HDR photos in the HEIF format. Already seen in the Panasonic S1 and S1R, these files contain more dynamic range and can be viewed on compatible HDR monitors. If you convert HEIF files in camera and save them as JPGs, you’ll get more details in the highlights and shadows in comparison to a standard JPG.
2. 8K vs 4K Video
The specification that made the news more than any other since Canon started to tease the launch of the EOS R5 was the possibility to record 8K video. Now that we know all the specs, let’s see exactly what these two cameras are capable of.
The R5 can record 8K up to 30fps, and 4K up to 120fps. It is the first mirrorless camera to have these characteristics. What’s more, the camera can record DCI 8K RAW video with a 12-bit colour depth.
8K and 4K are recorded without a sensor crop. 8K and 4K up to 30p are oversampled (full pixel readout) whereas 4K at 60p or 120p is recorded with line skipping. Note that 4K at 100/120p can be accessed with the High Frame Rate mode which means you get the slow motion effect in camera.
The R6 doesn’t have the same impressive capabilities, but it still does better that most of its competitor. It can record 4K up to 60p, and 1080p up to 120fps. 4K/60p has a small 1.07x crop.
Curiously, the maximum frame rate of the R5 in Full HD is 60p. I would have hoped for something like 240fps since it can do 120fps in 4K.
On the R5 you can choose between ALL-Intra and IPB compression, whereas only IPB is available on the R6 (maximum bitrate is 340Mbps).
All-intra on the EOS R5 gives you the following bitrates:
- 1300Mbps in 8K (16:9 and DCI)
- 1800Mbps in 4K/120p
- 940Mbps in 4K/60p
- 470Mbps in 4K/30p
- 230Mbps in 1080p 60p
Dual Pixel CMOS autofocus remains active with all the resolution and frame rates of both cameras. The recording limit is the usual 30 minutes per clip (including 8K on the R5).
Both products can record 10-bit 4:2:2 internally (H.265 codec) with either the Canon Log or HDR PQ profiles. HDR PQ is more sophisticated in comparison to HLG and follows the Dolby Vision and HDR10 standards. 10-bit 4:2:2 is also available via the HDMI output.
Both cameras have a microphone input and headphone output, as well as extra settings such as Zebra, focus peaking Focus Guide and a 4K Time-Lapse mode.
3. Dual Pixel RAW
Introduced with the 5D mark IV DSLR, the Dual Pixel RAW mode uses the technology of the Dual Pixel CMOS AF system to record a special RAW file that contains the depth information analysed by the phase detection pixels. This allows you to change a few things in post production such as focus, bokeh and flare, using Canon’s Digital Photo Professional software.
The adjustments you can make are really tiny, but it looks like Canon has improved this on the EOS R5. You can now also adjust background clarity and the light on a person’s face. I’m curious to find out more about this.
The R6 doesn’t have Dual Pixel RAW.
4. Design and controls
The EOS R5 and R6 look very similar when it comes to shape and button layout. The dimensions are basically the same but the R5 is a bit heavier.
- R5: 138 x 97.5 x 88.0mm, 738g (with battery and cards)
- R6: 138 x 97.5 x 88.4mm, 680g (with battery and cards)
The two cameras have a magnesium alloy chassis and a tempered front panel to improve internal rigidity. Gordon Laing says that the R6 has a polycarbonate exterior whereas the R5 has magnesium on the outside too. They are completely weather-sealed and the weather sealing on the R5 is supposed to be the same as the 5D IV DSLR. The R5 has a shutter unit rated at 500,000 actuations, whereas it is 300,000 for the R6.
The button layout is the same on the front and rear. On the top however, the R5 has a small LCD screen to check information at a glance instead of the classic shooting mode dial found on the R6. To change modes on the R5, you press the M button in combination with the front or rear dial, the touch screen or the rear wheel.
5. Viewfinder and rear monitor
The R5 has an electronic viewfinder with 5.76 million dots, whereas the one on the R6 has 3.69M dots. The other characteristics are the same:
- 0.76x magnification
- 120Hz refresh rate
- 23mm eyepoint
Both cameras have a vari-angle LCD screen on the rear but the characteristics are different. The R5 monitor is 3.15 inches and has a resolution of 2.1M dots, whereas the one on the R6 is slightly smaller (3.0-in) and has a resolution of 1.62M dots. They are both touch sensitive.
6. Memory cards
To the delight of many, the EOS R5 and R6 have two memory card slots.
The R6 uses the SD standard on both and is compatible with UHS-II.
The R5 has one CF express and one SD UHS-II slot. The CF express is type B which makes it compatible with the XQD standard you find on the Nikon Z6 and Z7, as well as the Lumix S1R.
Note that you can’t record 8K video on an SD card on the R5, you need to use a CFexpress card.
7. Wireless connectivity
In addition to the 2.4Ghz Wifi that is also present on the R6, the EOS R5 has the faster 5.0GHz protocol that enables more features: you can connect to an FTP server or send images to a mobile device much faster.
Canon also has built an optional Wireless File Transmitter R10-A that looks like a copy of the Battery Grip BG-R10 but includes 5 GHz 802.11ac support to enhance the signal, and an Ethernet port.
Bluetooth is also available on both. It allows you to have a continuous connection, connect automatically to a paired device, or add GPS information to your images.
8. Battery life
The two cameras use an updated version of the LP-E6 battery (LP-E6NH) which increases the capacity from 14Wh to 16Wh.
The R5 is rated at 320 shots when using the EVF, or 490 using the LCD screen. If you increase the live view to 120fps however, the rating drops to 220 / 320 respectively (CIPA).
The R6 has a rating of 380 frames (EVF) or 510 (LCD) so it looks like it consumes a bit less power. With 120Hz, these figures drop to 250 and 360 shots respectively.
Both cameras can be charged via USB but you need a high current charger.
9. Voice Tagging
Another small difference is that the EOS R5 has an Audio recording function built-in, with a dedicated button for it on the rear of the camera on the top left next to the menu button.
This is useful to record some quick memos while photographing people or other situations where you need to add notes about a particular shot or moment.
The Canon EOS R5 starts at $3900, whereas the R6 is $2500. Prices are for the body only and as of July 2020.
The European prices are €4700 / £4200 for the R5 and €2800 / £2500.
The EOS R5 and R6 look like great products on paper, and I admit I’m quite excited about trying them out. It certainly shows that Canon now wants to conquer the full frame mirrorless market.
We’ll have to see how the sensors compare against Sony’s, how well the new autofocus system works and if there are going to be overheating problems when recording video (especially for the R5). Regarding the latter, there is an interesting article on EOSHD that shares official information that Canon supplied to dealers: it looks like that camera could easily stop after 20min when recording in 8K. (Update: Canon also issued a statement regarding this matter.)
Canon is also putting in a lot of effort on the lens front. Although we need more affordable options (especially primes), the 2.8 zoom trinity is already available, there are gems such as those in the 1.2 series, and now we’re also getting extreme telephoto lenses, including two curious primes, the 600mm f/11 and 800mm f/11.
Granted, f/11 is not exciting, but they are compact and well-priced, plus it is a move that nobody else has made so far in the full-frame camera department, so I’m curious to see how much I can get out of them for wildlife photography.
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Canon EOS R5 and EOS R6 coverage: