Canon R5 Vs Sony A7s Iii

By | 24/10/2022

Sensor megapixel count has long been a hot topic when talking about digital cameras. Sony and Canon have been vying for first identify in recent years with Canon releasing its 50MP 5DS/5DSr and Sony with the A7R Iv which has the globe’s get-go full frame sensor with 61MP.

The EOS R5 doesn’t offer the highest resolution on a Catechism camera, but it is close with a brand new 45MP sensor. What’s more, many of its features for stills and video put the photographic camera on equal footing with or ahead of the competition. Let’south see how they compare.

Canon EOS R5 and EOS R6 coverage:

EOS R5 vs EOS R6

– EOS R vs EOS R5


EOS R6 vs A7 III


EOS R5 vs A7R Iv

EOS R5 vs Nikon Z7

EOS R6 vs Nikon Z6

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1. Design and usability

The EOS R5 has a very similar design to the original EOS R, albeit e’er so slightly larger. It is a pattern that I similar a lot: a skillful compromise between size, weight and a comfy grip.

The A7R IV is smaller and weighs a bit less because of Sony’s instance on keeping its A7 range as compact as possible. Although I prefer the Canon design, the A7R Iv has received a few design tweaks that brand information technology more comfortable to hold than the previous generation (A7 Three and A7R III).

  • EOS R5: 138 ten 97.five ten 88.0mm, 738g
  • A7R IV: 128.nine x 96.4 x 77.5mm, 665g
eos r5 vs a7r 4 size comparison

Both cameras are constructed from magnesium alloy and are weather-sealed.

Both cameras offer a adept number of controls with various buttons, dials, and an AF Joystick at the rear (the sensitivity of the Canon version tin can exist changed). Unique to the A7R IV is the exposure compensation punch and shooting way dial on summit. On the R5, y’all printing and hold the M button and then turn ane of the dials or utilize the impact screen to change shooting modes.

There are two memory cards slots on each product. The Sony uses ii UHS-2 slots that have SD cards, whereas the R5 has one slot for the CF Express/XQD carte, and one for SD UHS-Two. CFexpress is a new format and the cards are more than expensive for at present, but ane of the reasons Canon chose information technology is to permit the camera to record video at very high bitrates as we will see further downwardly.

dual card slot on eos r5

The CIPA ratings for the battery life are 320 shots if you utilize the viewfinder, or 490 shots if you use the rear monitor on the R5. For the A7R 4, information technology’south 530 and 670 frames respectively. These numbers propose that the Sony is improve, and indeed information technology has the best battery pack I’ve tested on a mirrorless photographic camera. Keep in mind that these figures are e’er below what you tin achieve for existent, and that is valid for both cameras.

sony battery
The Sony BP-FZ100 bombardment

Both cameras can be charged via USB and the Sony tin can besides be powered while in performance. A bombardment grip is available for both.

Finally, both have a Micro HDMI output, a USB C port, a microphone input, a headphone output and a flash sync last. The A7R IV has an extra USB port (micro 2.0) and the R5, a proprietary remote control input.

2. Viewfinder and LCD screen

Both cameras use viewfinders with a high resolution, 5.75M dots (0.5-in OLED panel) to be precise, which provides superb definition when composing your epitome. The Sony has a slightly higher magnification (0.78x vs 0.76x) but other specs such as the eyepoint (23mm) and refresh rate (120fps) are the same.

sony a7r 4 viewfinder

The R5 has two LCD monitors. In that location is a small-scale i on the top that shows the various settings in use and how much battery is left. It is a smaller version of similar screens you detect on high-end DSLRs and a few mirrorless cameras too.

eos r5 top lcd

On the rear, we spot some other difference. The A7R Four has a 2-style screen that can move upward or downwardly. The R5 has a multi-angle LCD that can be opened to the side and rotated 180˚, which is useful for filming yourself or simply having the possibility to orient the screen in different directions when shooting at bad-mannered angles.

eos r5 rear lcd

Both screens on the rear are touch on sensitive, just the actions you can perform are more than limited on the Sony (focus point or magnification only). On the Canon, you tin can as well navigate the bill of fare and the quick bill of fare and alter any setting you like. I similar this option a lot, in fact I discover it easier to change settings in the Canon carte du jour with the touch screen than with the buttons.

3. Sensor and Image Quality

Canon and Sony have put their most recent sensor to engagement into these 2 high-end cameras.

The R5 has a brand new 45MP sensor, whereas the A7R 4 has the world’s first 61MP full frame sensor seen on a digital camera.

sony a7r 4 sensor

The Sony lacks the anti-aliasing filter then as to maximise sharpness, whereas the Catechism has one congenital in front end of the sensor. The A7R IV sensor has a BSI structure (back-illuminated) which puts the photodiodes closer to the micro lenses, assuasive them to capture more calorie-free as a upshot. This normally gives a fleck of a boost in terms of dynamic range and high ISO functioning.

bsi structure

Side by side we have the ISO range, which is as follows for the 2 cameras:

  • EOS R5: 100 – 51200 ISO (50 to 102400 with extended values)
  • A7R IV: 100 – 32000 ISO (l to 102400 with extended values)

In our tests, the A7R 4 had the same dynamic range capabilities equally its predecessor the A7R Three, and ever so slightly more noise at high ISOs, which is totally understandable given the higher megapixel count. In short, the 61MP sensor is extremely capable, which isn’t a surprise since Sony is known for making the best image sensors on the market.

Canon makes its own sensors equally well but they have struggled to match the performance of Sony, especially when it comes to dynamic range. The new 45MP sensor of the R5 should be better according to Canon, and we’re curious to run into how it will perform against the Sony, resolution aside.

Another thing to consider if nosotros want to list the pros of a high resolution sensor is cropping possibilities. Fifty-fifty when used in APS-C mode, the A7R 4 delivers 25MP of resolution (it should be virtually 17MP for the Canon). In post, you tin can crop fifty-fifty farther and still retain a more than decent resolution similar in the example beneath.

red kite flying taken with the A7R IV
A7R IV, 1/2000, f/6.iii, ISO 10,000 – FE 200-600mm f5.6-vi.3 G OSS at 600mm

heavy crop
Crop (12MP equivalent)

four. Autofocus system

The EOS R5 and A7R 4 feature an advanced autofocus arrangement based on phase detection.

The Catechism solution is called Dual Pixel CMOS AF 2 and information technology is the latest version introduced with the R5 and R6. The unique feature of this technology is that each pixel on the sensor is composed of ii photodiodes instead of one like on conventional sensors. The two photodiodes are combined together to create the photograph, and separately (left and right) to measure the incoming light and make up one’s mind the stage difference.

canon dual pixel cmos af

Having the phase detection sensors on every pixel allows the EOS R5 to have 100% autofocus coverage across the entire sensor area. This is indeed the instance when you select face up/heart detection or AF Tracking. With the other focus modes, the area used is slightly smaller (90% horizontally and 100% vertically). When using the single AF bespeak, you can choose a position among 5940 different points!

canon autofocus

The A7R Iv uses a more conventional method, where pairs of pixels on the sensor (not all of them) are partially masked to read the light (left and right again) and summate the stage departure.

The A7R Four has 567 phase detection points that cover 74% of the width and 99% of the height of the sensor. It also has 425 contrast detection points which tin can be useful in very dim light.

Speaking of low light situations, the EOS R5 autofocus has a minimum sensitivity of -half-dozen stops when using an f1.two lens (-four.5 at f/ii). The A7R 4 does -3 stops with an f/ii aperture.

Both cameras used deep learning technology and advanced algorithms to improve the performance. The Sony has Real-Time Tracking where the camera can analyse the face up, eye, colour, brightness and depth of an image to track the subject improve. We tested this first hand and it works flawlessly. I’d even say it is one of the best tracking systems nosotros’ve e’er used (with the very all-time being that of the Sony A9 and A9 II). The photographic camera tin can likewise runway the optics of animals (except birds for now).

In addition to tracking the face up and optics of humans, the EOS R5 uses deep learning technology to runway the body, face or eye of various animals including birds.

canon eye detection on birds

5. 5-centrality stabilisation

Sony brought five-axis stabilisation to a full frame camera for the starting time fourth dimension with the A7 Ii (2014). Canon has waited much longer, with the EOS R5 beingness the get-go from the make to characteristic this technology (alongside the R6 that was announced at the same time).

The system works by compensating for photographic camera shakes on five unlike axes: roll, x, y, pitch and yaw. The sensor can work on its own or in combination with the optical stabilisation of a lens, where simply three axes are used on the sensor (x, y and roll).

To each stabilisation system is assigned a rating by the CIPA association and the EOS R5 gets a tape 8 stops of bounty. The A7R Iv has a lower score of 5.5Ev. Annotation that the score on the Canon can differ depending on the lens used (read the full listing in our R5 vs R6 article).

To apply the CIPA rating to a practical instance, allow’southward take a 24mm wide angle lens. The safe shutter speed to use would be 1/25 (rule of thumb = 1/24s, so the closest is one/25s). Merely if you can compensate upward to 8 stops, it ways that you can take the same shot with a shutter speed of 10 seconds! Or around one.6 seconds with the A7R IV.

10 seconds sounds crazy, simply I managed to take a shot hand-held with this exposure with the Olympus OM-D system. I accept yet to endeavour the Canon photographic camera to see if I tin become the same result. For now all I’ve heard is reports of successful attempts at 1s, 2s or even 4s (which is already awesome if truthful).

What I can tell you for certain is that it is not possible to take a shot hand-held longer than one second with the A7R 4. In fact, you should stay higher up 1/5s to have a decent keeper rate. So plain official ratings are one thing, real globe results are another, but I’k curious to see what I tin go with the R5 when I have the hazard to examination it.

The stabilisation organization on both cameras works for video too. The A7R IV is one of the all-time Sony cameras I’ve tried, but information technology’s not the all-time in class, specially when it comes to movements. The R5 might do better, and it also has an additional setting called Digital IS (electronic stabilisation) that is supposed to further improve the result (but crops the field of view a picayune as a result).

vi. High Res mode and other features

The A7R Four takes advantage of its stabilisation mechanism for more than just correcting camera shakes: information technology can increase the resolution of yous photo.

The Pixel Shift Multi Shooting role takes a series of photos and moves the sensor by one pixel between each shot. When these shots are merged in mail service, you lot obtain a file with more resolution and amend color accuracy because each point in the photo has been captured by multiple pixels, including at least 1 ruby, blue and green pixel. (In the instance of a normal photo, each signal would be captured by only 1 of the blood-red, green or blue pixels).

pixel shift multi shooting

The A7R IV has ii modes: the offset takes 4 images. The resolution stays the aforementioned when they are merged (61MP) but the colour resolution increases. The second mode takes 16 images and increases both color resolution and the megapixel to 240MP! Annotation that yous need the Sony Imaging Border software to merge the shots.

image of a doll taken with a7r 4 and multi shoot mode

crop that compares 4 shots mode to 16 shots mode

The EOS R5 doesn’t have the same capability, but information technology uses its Dual Pixel CMOS AF system for something else chosen Dual Pixel RAW which is rather interesting.

When this mode is selected, the camera captures a special RAW file that contains the depth data taken from the phase detection pixels. With Canon’s proprietary software on your reckoner, you tin open this special RAW file and change things that would normally be impossible to alter. For example, you lot can fine-melody the focus point, change the bokeh or the background clarity, and even accommodate the calorie-free on a person’southward face. It is not a magic play tricks made with deep learning engineering similar many smartphones, it comes from data captured by the sensor.

I tested an early on version of this on the original EOS R, and it is worth pointing out that you should not get besides excited just still. The adjustments are very small. The focus adjustment, for case, is really only a matter of giving that extra bit of sharpness if the AF was 99% accurate rather than 100% authentic. That said, the EOS R5 has a new version of Dual Pixel RAW and I’m curious to see if you tin can practise more with it.

example of focus change with dual pixel raw

The EOS R5 has some other thing you lot won’t find on the Sony called HDR photo. It saves HEIF files in 10-bit that have more than dynamic range than the classic JPG compression. HEIF is non widely compatible nevertheless, but this could modify in the future. You tin covert from HEIF to JPG in camera and it will yet requite yous better DR than shooting in JPG directly.

7. Burst Speed

Despite the high resolution sensors, the R5 and A7R IV have more than than decent continuous shooting capabilities.

The EOS R5 especially is quite good: it can record upwards to 12fps with the mechanical shutter, or a whopping 20fps with the electronic shutter.

The A7R IV doesn’t reach the same speed, but offers a respectable 10fps (mechanical shutter), peachy at all because the 61MP photos. The electronic shutter doesn’t increment the speed like information technology does on the Canon.

The buffer is superior on the Catechism too: the EOS R5 tin tape 180 RAW files or 340 JPG files at 12fps. The A7R IV does 68 RAW or JPG files.

8. Video Recording

The Catechism EOS R5 packs impressive video capabilities. It is the commencement mirrorless camera to attain 8K video recording internally. Even more impressive, information technology can do this in 12-bit RAW (DCI format). The maximum bitrates are 1300Mbps (ALL-Intra) or 2600Mbps (RAW). There is no sensor ingather either.

4K doesn’t look bad with speeds upward to 120fps (High Frame Rate mode). Up to 30p, it records with full pixel readout (oversampling from 8K) which should give very good sharpness.

The A7R Four doesn’t accept 8K capabilities. It tin can record in 4K upwards to 30p and 100Mbps (XAVC S codec). If you want 120fps, you lot demand to select Full HD. In that location is no RAW option either. In full frame mode, information technology records with pixel binning, whereas in Super35 mode (APS-C crop), it records with full pixel readout (oversampling from 5K).

Ane reward is that the A7R IV has unlimited recording, even in 4K, so the photographic camera won’t stop after xxx minutes like many others do.

The EOS R5 on the other mitt, is set up to cease after 20 minutes in 8K, xxx minutes in 4K or vii minutes in 4K/120p. There have as well been some concerns about overheating, where the camera might only be able to record a few minutes at a time afterwards it has cooled down. EOSHD was amid the first to study this and Canon has also issued a statement well-nigh it. Allow’s wait for more reviews to learn nearly this.

view of the EOS R5 LCD while recording video

One advantage of the Canon is that it can record 10-bit 4:two:2 footage internally with the Canon C-Log or the HDR PQ curve. x-fleck is also available via HDMI output.

The A7R 4 has several Log and HDR profiles, just the colour sampling is limited to eight-bit internally or over HDMI.

Concerning the ISO range, the Catechism loses ane stop in comparing to the photograph manner (upward to 25600 ISO, 51200 is an extended level). The A7R IV goes from 100 to 32000 just similar for stills but lacks the extended values.

Concerning sound, you lot will find a 3.5mm input and output on both cameras.

9. Lens catalogue

Before the determination, let’s talk about the two systems and the lenses they have to offering.

The R5 uses the RF mountain which was launched two years ago. In that location are now no fewer than 15 lenses including the 2.8 zoom trinity, some very fast 1.two primes and some unique lenses such as the 28-70mm f2. At that place aren’t a lot of affordable lenses as of now, nor are there many tertiary party lenses, just we’re merely at the beginning. Of course you can use an adapter and become admission to a huge catalogue of DSLR lenses, simply that is something you can do with the A7R IV too.

canon rf lenses

The Sony E-mount organization has been effectually since late 2013 and Sony has released more than 30 lenses upward until now, with more to come up. Some other advantage is that the East-mount is now actively supported by popular third party brands such equally Sigma, Tamron, Zeiss and Samyang which ways that there is a lens for every budget and demand.

ten. Price

The EOS R5 is the more expensive of the two, starting at $3900, €4700 or £4200 for the body merely.

The A7R IV is being sold for $3200, €3800 or £3500 (body but).

Note: prices are as of July 2020. Us prices exclude tax.


Canon wants to enter the market with a bang with the EOS R5 and the specifications on paper suggest they’ve achieved that goal. It looks like a serious product for still shooters and an impressive camera for videographers. If the new sensor tin can match the quality of the Sony sensor, Canon could have a big winner here. Of course there are many questions that demand answering, starting from the overheating concerns when recording 8K or 4K, so we need to wait for more real world feedback.

The A7R IV is the most mature camera nosotros’ve tested in the A7 range. It delivers stunning paradigm quality, has a slap-up autofocus, very good video quality with unlimited recording, decent stabilisation, and the design is improving. Nosotros’re going to be in for a treat when we compare these 2 cameras next.

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Canon EOS R5 and EOS R6 coverage:

EOS R5 vs EOS R6

– EOS R vs EOS R5


EOS R6 vs A7 Three


EOS R5 vs A7R Iv

EOS R5 vs Nikon Z7

EOS R6 vs Nikon Z6