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Canon R3 Comparison Review

The Canon EOS R3 is a mirrorless interchangeable lens camera that was announced in September 2021 and is equipped with a full frame sensor. It offers a resolution of 24 megapixel.

camera

Is the Canon R3 a good camera? The R3 has a Camera Elo of 3224. This very strong rating puts it among the elite group of camera grand masters. The R3 ranks among the top 10 percent of all mirrorless interchangeable lens cameras. In terms of its sensor size category (full frame cameras), the R3 also ranks among the top 10 percent.

Headline Specifications
Canon R3
Mirrorless system camera
Canon RF mount lenses
24 MP, Full Frame Sensor
6K/60p Video
ISO 100 - 51 200 (50 - 204 800)
Electronic viewfinder (5760k dots)
3.2 LCD, 4150k dots
Swivel touchscreen
12 shutter flaps per second
In-body stabilization
Weathersealed body
760 shots per battery charge
150 x 143 x 87 mm, 1 015 g


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Read on to find out more about the camera's size, sensor, features, reception by expert reviewers, and how it compares to other digital cameras.

Body comparison with a credit card

The physical dimensions of the Canon R3 relative to a credit card are illustrated in the side-by-side display below. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

Canon R3 vs credit card front
R3 versus credit card top view
R3 and credit card rear side

The table below summarizes the key physical specs of the Canon R3 alongside a set of similar cameras. If you want to review a particular camera pair side-by-side, just move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.

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Body Specifications
    Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon R3 150 mm 143 mm 87 mm 1015 g 760 Y Sep 2021 5,999 i
2.
 
Canon 1D X Mark III 158 mm 168 mm 83 mm 1440 g 2850 Y Jan 2020 6,499 i
3.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 3,899 i
4.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 2,499 i
5.
 
Leica SL2-S 146 mm 107 mm 83 mm 931 g 510 Y Dec 2020 4,895 i
6.
 
Nikon D6 160 mm 163 mm 92 mm 1270 g 3580 Y Feb 2020 6,499 i
7.
 
Nikon Z5 134 mm 101 mm 67 mm 675 g 470 Y Jul 2020 1,399 i
8.
 
Nikon Z6 II 134 mm 101 mm 70 mm 705 g 410 Y Oct 2020 1,999 i
9.
 
Panasonic S5 133 mm 98 mm 82 mm 714 g 440 Y Sep 2020 1,999 i
10.
 
Sony A1 129 mm 97 mm 81 mm 737 g 530 Y Jan 2021 6,499 i
11.
 
Sony A7C 124 mm 71 mm 60 mm 509 g 740 Y Sep 2020 1,799 i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The Canon R3 was launched in the US market at a price of $5,999. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Canon R3:
Check Amazon price

Sensor comparison with a 35mm slide

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.

The Canon R3 features a full frame sensor and has a format factor (sometimes also referred to as "crop factor") of 1.0. Within the spectrum of camera sensors, this places the Canon R3 among the large-sensor cameras that aim for top notch image quality.

Canon R3 sensor measures

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of alternatives.

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Sensor Characteristics
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon R3 Full Frame 24.0 6000 40006K/60p25.414.5304896
2.
 
Canon 1D X Mark III Full Frame 20.0 5472 36484K/60p24.214.5324891
3.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
4.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
5.
 
Leica SL2-S Full Frame 24.0 6000 40004K/60p25.214.1350495
6.
 
Nikon D6 Full Frame 20.7 5568 37124K/30p25.314.3288695
7.
 
Nikon Z5 Full Frame 24.2 6016 40164K/30p25.314.3292995
8.
 
Nikon Z6 II Full Frame 24.3 6048 40244K/60p25.014.4330394
9.
 
Panasonic S5 Full Frame 24.0 6000 40004K/60p25.114.5269794
10.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
11.
 
Sony A7C Full Frame 24.0 6000 40004K/30p25.014.7340795
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The R3 indeed provides movie recording capabilities. The highest resolution format that the R3 can use is 6K/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the R3 has an electronic viewfinder with a resolution of 5760k dots. The viewfinder offers a field of view of 100% and a magnification of 0.76x. The adjacent tables list some of the other core features of the Canon R3 along with similar information for a selection of comparators.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon R35760 Y3.2 / 4150 swivel Y 1/8000s 12.0 n Y
2.
 
Canon 1D X Mark IIIoptical Y3.2 / 2100 fixed Y 1/8000s 20.0 n n
3.
 
Canon R55760 Y3.2 / 2100 swivel Y 1/8000s 10.0 n Y
4.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0 n Y
5.
 
Leica SL2-S5760 Y3.2 / 2100 fixed Y 1/8000s 20.0 n Y
6.
 
Nikon D6optical Y3.2 / 2359 fixed Y 1/8000s 14.0 n n
7.
 
Nikon Z53690 n3.2 / 1040 tilting Y 1/8000s 4.5 n Y
8.
 
Nikon Z6 II3690 Y3.2 / 2100 tilting Y 1/8000s 14.0 n Y
9.
 
Panasonic S52360 n3.0 / 1840 swivel Y 1/8000s 7.0 n Y
10.
 
Sony A19437 n3.0 / 1440 tilting Y 1/8000s 10.0 n Y
11.
 
Sony A7C2360 n3.0 / 922 swivel Y 1/4000s 10.0 n Y

The LCD screen on the Canon EOS R3 is flexibly attached to the body. In particular, the LCD is hinged on the side and can be flipped out for odd-angle shots in both portrait and landscape orientation. Also, this fully articulated, swivel type of LCD attachment is often appreciated by videographers for its flexibility. Moreover, v-loggers like the design because the screen can be turned to be front-facing.

articulated screen
Flexible screen on the R3

One useful feature of the R3 is a presence of a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

Connection comparison

For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon EOS R3 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon R3Ystereo / monoYYmicro3.2Y-Y
2.
 
Canon 1D X Mark IIIYmono / monoYYmini3.1Y-Y
3.
 
Canon R5Ymono / monoYYmicro3.2Y-Y
4.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
5.
 
Leica SL2-SYstereo / monoYYfull3.2Y-Y
6.
 
Nikon D6Ystereo / monoYYmini3.1Y-Y
7.
 
Nikon Z5Ystereo / monoYYmicro3.2Y-Y
8.
 
Nikon Z6 IIYstereo / monoYYmicro3.2Y-Y
9.
 
Panasonic S5Ystereo / monoYYmicro3.2Y-Y
10.
 
Sony A1Ystereo / monoYYfull3.2Y-Y
11.
 
Sony A7CYstereo / monoYYmicro3.2YYY

It is notable that the R3 has a microphone port. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.

Expert reviews

While the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the R3 handle or perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate. This is why hands-on reviews by experts are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]).

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Review Scores
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon R3..o........ Sep 2021 5,999 i
2.
 
Canon 1D X Mark III..+ +5/5..4.5/54/5 Jan 2020 6,499 i
3.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 3,899 i
4.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 2,499 i
5.
 
Leica SL2-S4/5..4/5..4.5/54.5/5 Dec 2020 4,895 i
6.
 
Nikon D6....4/5..4.5/54.5/5 Feb 2020 6,499 i
7.
 
Nikon Z54/5..4/589/1004.5/54/5 Jul 2020 1,399 i
8.
 
Nikon Z6 II4.5/5..4/589/1004.5/54.5/5 Oct 2020 1,999 i
9.
 
Panasonic S54.5/5+ +4.5/588/1004.5/54.5/5 Sep 2020 1,999 i
10.
 
Sony A15/5o4.5/593/1004.5/55/5 Jan 2021 6,499 i
11.
 
Sony A7C3.5/5..3.5/586/1004/54/5 Sep 2020 1,799 i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Canon R3 FAQ

Below are some additional questions and answers concerning some particular features of the R3.

What technology is the imaging sensor in the R3 based on?

The camera features a CMOS (Complementary Metal–Oxide–Semiconductor) sensor.

Which image processing chip is used to convert the raw signal into an image file and perform noise reduction and image sharpening?

Canon equipped the R3 with the DIGIC X image processor.

What is the ISO sensitivity range of the R3?

The camera has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-204800.

Does the camera have a selfie-friendly screen?

Yes, the LCD-screen of the R3 is flexible and can be turned to be front-facing for capturing selfies.

What is the life expectancy of the shutter in the Canon EOS R3?

Canon mentions a shutter rating of 300 000 actuations for the R3. This number represents a Mean Time before Failure, that is an average value. The shutter might fail earlier, or it might last longer. Anyway, in order to exhaust the expected shutter life of the R3 over, say, three years, one would have to take about 300 pictures each and every day.

Is completely silent shooting possible with the Canon R3?

The camera has an electronic shutter option, so that it is indeed feasible to capture images without any shutter noise.

Do I need to purchase an external camera trigger to shoot time-lapse sequences?

No, the Canon EOS R3 has an intervalometer built-in, so that low frequency shooting (for example, flower blooming, sunset, moon rise) can be undertaken without the need to purchase a separate external intervalometer and related software.

Is it difficult to use manual focus lenses with the Canon R3?

The R3 offers focus peaking as a manual focus aid. This feature works by placing a colored highlight on in-focus zones within the image.

Does the Canon R3 feature an autofocus assist light?

Yes, the camera has a lamp built-in that can illuminate the subject and improve autofocus in low-light settings.

What is the fastest shutter speed that can be used with flash?

The R3's flash sync speed is 1/250 sec.

Does the Canon R3 support the Ultra High Speed (UHS) bus interface for SD cards?

Yes, the camera can indeed use UHS-II cards (data transfer speed of up to 312 MB/s).

Which battery does the R3 use?

The camera gets its power from the LP-E19 (here at amazon), which is a rechargeable Lithium-Ion power pack.

Camera to camera comparisons

In case you are interested in seeing how this camera compares to another one, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications Summary
    Camera Model Canon R3
    Camera Type Mirrorless system camera
    Camera Lens Canon RF mount lenses
    Launch Date September 2021
    Launch Price USD 5 999
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format Full Frame Sensor
    Sensor Size 36.0 x 24.0 mm
    Sensor Area 864 mm2
    Sensor Diagonal 43.3 mm
    Crop Factor 1.0x
    Sensor Resolution 24 Megapixels
    Image Resolution 6 000 x 4 000 pixels
    Pixel Pitch 6.00 μm
    Pixel Density 2.78 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 6K/60p Video
    ISO Setting 100 - 51 200 ISO
    ISO Boost 50 - 204 800 ISO
    Image Processor DIGIC X
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.76x
    Viewfinder Resolution 5760k dots
    Top-Level Screen Control Panel
    LCD Framing Live View
    LCD Size 3.2 inch
    LCD Resolution 4150k dots
    LCD Attachment Swivel screen
    V-logging Friendliness Front-flip possible
    Touch Input Touchscreen
    Shooting Specs
    Focus System On-Sensor Phase-detect
    Manual Focusing AidFocus Peaking
    Maximum Shutter Speed 1/8000s
    Continuous Shooting 12 shutter flaps/s
    Shutter Life Expectancy300 000 actuations
    Silent ShootingElectronic Shutter
    Time Lapse PhotographyIntervalometer Built-in
    Image StabilizationIn-body stabilization
    Fill Flash no On-Board Flash
    Storage Medium CFexpress or SDXC cards
    Second Storage Option Dual card slots
    UHS card support UHS-II
    Connectivity Specs
    External Flash Hotshoe
    Studio Flash PC Sync socket
    USB Connector USB 3.2
    HDMI Port micro HDMI
    Microphone Port External MIC port
    Headphone Socket Headphone port
    Wifi Support Wifi built-in
    Bluetooth Support Bluetooth built-in
    Body Specs
    Environmental SealingWeathersealed body
    Battery Type LP-E19 power pack
    Battery Life (CIPA)760 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 150 x 143 x 87 mm
    (5.9 x 5.6 x 3.4 in)
    Camera Weight 1 015 g (35.8 oz)

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