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Canon R5 Mark II vs Olympus E-M1 III

The Canon EOS R5 Mark II and the Olympus OM-D E-M1 Mark III are two enthusiast cameras that were revealed to the public, respectively, in July 2024 and February 2020. Both the R5 Mark II and the E-M1 III are mirrorless interchangeable lens cameras that are based on a full frame (R5 Mark II) and a Four Thirds (E-M1 III) sensor. The Canon has a resolution of 44.8 megapixels, whereas the Olympus provides 20.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon R5 Mark II
versus
Olympus E-M1 III
Canon R5 Mark II   Olympus E-M1 III
Mirrorless system camera Mirrorless system camera
Canon RF mount lenses Micro Four Thirds lenses
44.8 MP – Full Frame sensor 20.2 MP – Four Thirds sensor
8k/60p Video 4K/30p Video
ISO 100-51,200 (50 - 102,400) ISO 200-25,600
Electronic viewfinder (5760k dots) Electronic viewfinder (2360k dots)
3.2" LCD – 2100k dots 3.0" LCD – 1037k dots
Swivel touchscreen Swivel touchscreen
12 shutter flaps per second 18 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
340 shots per battery charge420 shots per battery charge
138 x 98 x 88 mm, 746 g 134 x 91 x 69 mm, 580 g
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Check R5 Mark II price at
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Check E-M1 III offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS R5 Mark II and the Olympus OM-D E-M1 Mark III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon R5 Mark II and the Olympus E-M1 III. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon R5 Mark II vs Olympus E-M1 III
Compare R5 Mark II versus E-M1 III top
Comparison R5 Mark II or E-M1 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M1 III is notably smaller (10 percent) than the Canon R5 Mark II. Moreover, the E-M1 III is markedly lighter (22 percent) than the R5 Mark II. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon R5 Mark II 138 mm 98 mm 88 mm 746 g 340 Y Jul 2024 US$ 4 299 amazon.com
2.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 US$ 1 799ebay.com
3.
 
Canon R1 158 mm 150 mm 87 mm 1115 g 1330 Y Jul 2024 US$ 6 299 amazon.com
4.
 
Canon R5 138 mm 98 mm 88 mm 738 g 320 Y Jul 2020 US$ 3 899 amazon.com
5.
 
Canon R5 C 142 mm 101 mm 111 mm 770 g 320 Y Jan 2022 US$ 4 499 amazon.com
6.
 
Canon R6 138 mm 98 mm 88 mm 680 g 360 Y Jul 2020 US$ 2 499 amazon.com
7.
 
Canon R6 Mark II 138 mm 98 mm 88 mm 670 g 450 Y Nov 2022 US$ 2 499 amazon.com
8.
 
Fujifilm GFX 50S II 150 mm 104 mm 87 mm 900 g 440 Y Sep 2021 US$ 3 999 amazon.com
9.
 
Fujifilm GFX 100S II 150 mm 104 mm 87 mm 883 g 530 Y May 2024 US$ 4 999 amazon.com
10.
 
Nikon Z8 144 mm 119 mm 83 mm 910 g 340 Y May 2023 US$ 3 999 amazon.com
11.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 US$ 1 999ebay.com
12.
 
Olympus E-M1X 144 mm 147 mm 75 mm 997 g 870 Y Jan 2019 US$ 2 999ebay.com
13.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 US$ 2 199ebay.com
14.
 
Panasonic G9 137 mm 97 mm 92 mm 658 g 400 Y Nov 2017 US$ 1 699ebay.com
15.
 
Panasonic G90 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 US$ 999ebay.com
16.
 
Panasonic S1R II 134 mm 102 mm 92 mm 795 g 350 Y May 2025 US$ 3 299 amazon.com
17.
 
Sony A1 II 136 mm 97 mm 83 mm 743 g 520 Y Nov 2024 US$ 6 499 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The E-M1 III was launched at a markedly lower price (by 58 percent) than the R5 Mark II, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

Sensor comparison

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 tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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.

Of the two cameras under consideration, the Canon R5 Mark II features a full frame sensor and the Olympus E-M1 III a Four Thirds sensor. The sensor area in the E-M1 III is 74 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 2.0. The sensor in the R5 Mark II has a native 3:2 aspect ratio, while the one in the E-M1 III offers a 4:3 aspect.

Canon R5 Mark II and Olympus E-M1 III sensor measures

With 44.8MP, the R5 Mark II offers a higher resolution than the E-M1 III (20.2MP), but the R5 Mark II nevertheless has larger individual pixels (pixel pitch of 4.39μm versus 3.34μm for the E-M1 III) due to its larger sensor. Moreover, the R5 Mark II is a much more recent model (by 4 years and 5 months) than the E-M1 III, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the E-M1 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon R5 Mark II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the R5 Mark II for good quality output (200 dots per inch) amounts to 41 x 27.3 inches or 104 x 69.4 cm, for very good quality (250 dpi) 32.8 x 21.9 inches or 83.2 x 55.5 cm, and for excellent quality (300 dpi) 27.3 x 18.2 inches or 69.4 x 46.3 cm. The corresponding values for the Olympus E-M1 III are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

Unlike the R5 Mark II, the E-M1 III has the capacity to capture high quality composite images (80MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The Canon EOS R5 Mark II has a native sensitivity range from ISO 100 to ISO 51200, which can be extended to ISO 50-102400. The corresponding ISO settings for the Olympus OM-D E-M1 Mark III are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

R5 Mark II versus E-M1 III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon R5 Mark II Full Frame 44.8 8192 54648k/60p25.414.8333297
2.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
3.
 
Canon R1 Full Frame 24.0 6000 40006K/60p25.414.8333297
4.
 
Canon R5 Full Frame 44.8 8192 54648K/30p25.314.6304295
5.
 
Canon R5 C Full Frame 44.8 8192 54648k/60p25.414.5308296
6.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
7.
 
Canon R6 Mark II Full Frame 24.0 6000 40004k/60p25.414.6315496
8.
 
Fujifilm GFX 50S II Medium Format 51.1 8256 61921080/30p25.914.83456100
9.
 
Fujifilm GFX 100S II Medium Format 101.8 11648 87364K/30p25.915.13720101
10.
 
Nikon Z8 Full Frame 45.4 8256 55048K/30p26.314.2254898
11.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
12.
 
Olympus E-M1X Four Thirds 20.2 5184 38884K/30p23.213.0125475
13.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
14.
 
Panasonic G9 Four Thirds 20.2 5184 38884K/60p23.112.8113874
15.
 
Panasonic G90 Four Thirds 20.2 5184 38884K/30p23.213.0127375
16.
 
Panasonic S1R II Full Frame 44.2 8144 54248K/30p25.414.8340697
17.
 
Sony A1 II Full Frame 49.8 8640 57608k/30p25.414.8336397
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the R5 Mark II provides a higher video resolution than the E-M1 III. It can shoot video footage at 8k/60p, while the Olympus is limited to 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the R5 Mark II offers a substantially higher resolution than the one in the E-M1 III (5760k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Canon R5 Mark II, the Olympus E-M1 III, and comparable cameras.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon R5 Mark II5760 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n Y
2.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
3.
 
Canon R19440 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n Y
4.
 
Canon R55760 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n Y
5.
 
Canon R5 C5760 Y3.2 / 2100 swivel Y 1/8000s 12.0/s n n
6.
 
Canon R63690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
7.
 
Canon R6 Mark II3690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
8.
 
Fujifilm GFX 50S II3690 Y3.2 / 2360 full-flex Y 1/4000s 3.0/s n Y
9.
 
Fujifilm GFX 100S II5760 Y3.2 / 2360 full-flex Y 1/4000s 7.0/s n Y
10.
 
Nikon Z83690 Y3.2 / 2089 full-flex Y 1/32000s 30.0/s n Y
11.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
12.
 
Olympus E-M1X2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
13.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
14.
 
Panasonic G93680 Y3.0 / 1040 swivel Y 1/8000s 20.0/s n Y
15.
 
Panasonic G902360 n3.0 / 1240 swivel Y 1/4000s 9.0/s Y Y
16.
 
Panasonic S1R II5760 n3.2 / 1840 full-flex Y 1/8000s 9.0/s n Y
17.
 
Sony A1 II9437 n3.2 / 2100 full-flex Y 1/8000s 30.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that is present on the R5 Mark II, but is missing on the E-M1 III is 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.

Both cameras have an articulated rear screen that can be turned to be front-facing. This feature will be particularly appreciated by vloggers and photographers who are interested in taking selfies.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Canon R5 Mark II and the Olympus E-M1 III both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

The R5 Mark II writes its imaging data to CFexpress (type B) or SDXC cards, while the E-M1 III uses SDXC cards. Both cameras feature dual card slots, which can be very useful in case a memory card fails. However, while the R5 Mark II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s) on both slots, the E-M1 III supports UHS-II only on its first slot and UHS-I (data transfer speed up to 104 MB/s) on the second one.

Connectivity 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 R5 Mark II and Olympus OM-D E-M1 Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon R5 Mark IIYmono / monoYYfull3.2Y-Y
2.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
3.
 
Canon R1Ystereo / monoYYfull3.2Y-Y
4.
 
Canon R5Ymono / monoYYmicro3.2Y-Y
5.
 
Canon R5 CYstereo / monoYYmicro3.2Y-Y
6.
 
Canon R6Ymono / monoYYmicro3.2Y-Y
7.
 
Canon R6 Mark IIYstereo / monoYYmicro3.2Y-Y
8.
 
Fujifilm GFX 50S IIYstereo / monoYYmicro3.2Y--
9.
 
Fujifilm GFX 100S IIYstereo / monoYYmicro3.2Y-Y
10.
 
Nikon Z8Ystereo / monoYYfull3.2Y-Y
11.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
12.
 
Olympus E-M1XYstereo / monoYYmicro3.0Y-Y
13.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
14.
 
Panasonic G9Ystereo / monoYYfull3.0Y-Y
15.
 
Panasonic G90Ystereo / monoYYmicro2.0Y-Y
16.
 
Panasonic S1R IIYstereo / monoYYfull3.2Y-Y
17.
 
Sony A1 IIYstereo / monoYYfull3.2Y-Y

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

The R5 Mark II is a recent model that features in the current product line-up of Canon. In contrast, the E-M1 III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the E-M1 III was succeeded by the OM System OM-1. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon and Olympus websites.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon R5 Mark II or the Olympus E-M1 III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.

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Reasons to prefer the Canon EOS R5 Mark II:

  • More detail: Offers more megapixels (44.8 vs 20.2MP) with a 52% higher linear resolution.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Features a larger and more technologically advanced imaging sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • Better video: Provides higher definition movie capture (8k/60p vs 4K/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (5760k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.74x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (2100k vs 1037k dots).
  • Faster data transfer: Supports a more advanced USB protocol (3.2 vs 3.1).
  • More solid recording: Has a full-sized HDMI port for a sturdy connection to an external recorder.
  • More modern: Reflects 4 years and 5 months of technical progress since the E-M1 III launch.

ilogo

Arguments in favor of the Olympus OM-D E-M1 Mark III:

  • Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Faster burst: Shoots at higher frequency (18 vs 12 flaps/sec) to capture the decisive moment.
  • Less heavy: Has a lower weight (by 166g or 22 percent) and is thus easier to take along.
  • Longer lasting: Gets more shots (420 versus 340) out of a single battery charge.
  • More affordable: Was introduced into a lower priced category (58 percent cheaper at launch).
  • More heavily discounted: Has been around for much longer (launched in February 2020).

If the count of individual advantages (bullet points above) is taken as a guide, the R5 Mark II is the clear winner of the match-up (15 : 7 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

R5 Mark II 15:07 E-M1 III

How about other alternatives? Do the specifications of the Canon R5 Mark II and the Olympus E-M1 III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the R5 Mark II or the E-M1 III. 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.

Expert reviews

This is why expert reviews are important. The adjacent summary-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]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon R5 Mark II......93/100.... Jul 2024 US$ 4 299 amazon.com
2.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 US$ 1 799ebay.com
3.
 
Canon R1............ Jul 2024 US$ 6 299 amazon.com
4.
 
Canon R54.5/5+4/591/1004.5/54.5/5 Jul 2020 US$ 3 899 amazon.com
5.
 
Canon R5 C..+ +........ Jan 2022 US$ 4 499 amazon.com
6.
 
Canon R65/5+ +4/590/1004.5/55/5 Jul 2020 US$ 2 499 amazon.com
7.
 
Canon R6 Mark II5/5+ +4.5/591/1004.5/55/5 Nov 2022 US$ 2 499 amazon.com
8.
 
Fujifilm GFX 50S II5/5..5/587/100..5/5 Sep 2021 US$ 3 999 amazon.com
9.
 
Fujifilm GFX 100S II............ May 2024 US$ 4 999 amazon.com
10.
 
Nikon Z85/5..5/594/1005/54.5/5 May 2023 US$ 3 999 amazon.com
11.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 US$ 1 999ebay.com
12.
 
Olympus E-M1X4.5/5o5/585/1004.5/5.. Jan 2019 US$ 2 999ebay.com
13.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 US$ 2 199ebay.com
14.
 
Panasonic G9..+ +5/585/1005/55/5 Nov 2017 US$ 1 699ebay.com
15.
 
Panasonic G904.5/5+4.5/583/1004.5/54.5/5 Apr 2019 US$ 999ebay.com
16.
 
Panasonic S1R II............ May 2025 US$ 3 299 amazon.com
17.
 
Sony A1 II............ Nov 2024 US$ 6 499 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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Other camera comparisons

Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. 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: Canon R5 Mark II vs Olympus E-M1 III

    Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.

    Camera Specifications
    Camera Model Canon R5 Mark II Olympus E-M1 III
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Canon RF mount lenses Micro Four Thirds lenses
    Launch Date July 2024 February 2020
    Launch Price USD 4,299 USD 1,799
    Sensor Specs Canon R5 Mark II Olympus E-M1 III
    Sensor Technology CMOS CMOS
    Sensor Format Full Frame Sensor Four Thirds Sensor
    Sensor Size 36.0 x 24.0 mm 17.3 x 13.0 mm
    Sensor Area 864 mm2 224.9 mm2
    Sensor Diagonal 43.3 mm 21.6 mm
    Crop Factor 1.0x 2.0x
    Sensor Resolution 44.8 Megapixels 20.2 Megapixels
    Image Resolution 8192 x 5464 pixels 5184 x 3888 pixels
    Pixel Pitch 4.39 μm 3.34 μm
    Pixel Density 5.18 MP/cm2 8.96 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 8k/60p Video 4K/30p Video
    ISO Setting 100 - 51,200 ISO 200 - 25,600 ISO
    ISO Boost 50 - 102,400 ISO 64 - 25,600 ISO
    Image Processor DIGIC X TruePic IX
    Screen Specs Canon R5 Mark II Olympus E-M1 III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.76x 0.74x
    Viewfinder Resolution 5760k dots 2360k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.2inch 3.0inch
    LCD Resolution 2100k dots 1037k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon R5 Mark II Olympus E-M1 III
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 12 shutter flaps/s 18 shutter flaps/s
    Electronic Shutterup to 1/32000sup to 1/32000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium CFexB or SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Dual card slots
    UHS card support Dual UHS-II Single UHS-II
    Connectivity Specs Canon R5 Mark II Olympus E-M1 III
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.2 USB 3.1
    HDMI Port full HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Canon R5 Mark II Olympus E-M1 III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type Canon LP-E6P Olympus BLH-1
    Battery Life (CIPA)340 shots per charge420 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 138 x 98 x 88 mm
    (5.4 x 3.9 x 3.5 in)
    134 x 91 x 69 mm
    (5.3 x 3.6 x 2.7 in)
    Camera Weight 746 g (26.3 oz) 580 g (20.5 oz)
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