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Canon 800D vs Olympus E-M5 III

The Canon EOS 800D (called Canon T7i in some regions) and the Olympus OM-D E-M5 Mark III are two digital cameras that were officially introduced, respectively, in February 2017 and October 2019. The 800D is a DSLR, while the E-M5 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (800D) and a Four Thirds (E-M5 III) sensor. The Canon has a resolution of 24 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 800D
versus
Olympus E-M5 III
Canon 800D   Olympus E-M5 III
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Micro Four Thirds lenses
24 MP – APS-C sensor 20.2 MP – Four Thirds sensor
1080/60p Video 4K/30p Video
ISO 100-25,600 (100 - 51,200) ISO 200-25,600
Optical viewfinder Electronic viewfinder (2360k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1040k dots
Swivel touchscreen Swivel touchscreen
6 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
600 shots per battery charge310 shots per battery charge
131 x 100 x 76 mm, 532 g 125 x 85 x 50 mm, 414 g
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Check 800D offers at
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Check E-M5 III offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 800D and the Olympus OM-D E-M5 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 800D and the Olympus E-M5 III. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The E-M5 III can be obtained in two different colors (black, silver), while the 800D is only available in black.

Size Canon 800D vs Olympus E-M5 III
Compare 800D versus E-M5 III top
Comparison 800D or E-M5 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-M5 III is notably smaller (19 percent) than the Canon 800D. Moreover, the E-M5 III is markedly lighter (22 percent) than the 800D. It is noteworthy in this context that the E-M5 III is splash and dust-proof, while the 800D does not feature any corresponding weather-sealing.

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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Canon EF Lens Catalog (800D) and the Micro Four Thirds Lens Catalog (E-M5 III). Mirrorless cameras, such as the E-M5 III, have moreover the advantage that they can use many lenses from other systems via adapters, as they have a relatively short flange to focal plane distance.

Concerning battery life, the 800D gets 600 shots out of its Canon LP-E17 battery, while the E-M5 III can take 310 images on a single charge of its Olympus BLS-50 power pack. The power pack in the E-M5 III can be charged via the USB port, 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

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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 800D 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 US$ 749ebay.com
2.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 US$ 1 199ebay.com
3.
 
Canon 77D 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 US$ 899ebay.com
4.
 
Canon 200D 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 US$ 549ebay.com
5.
 
Canon 750D 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 US$ 749ebay.com
6.
 
Canon 760D 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 US$ 649ebay.com
7.
 
Canon 850D 131 mm 103 mm 76 mm 515 g 800 n Feb 2020 US$ 749ebay.com
8.
 
Canon 1300D 129 mm 101 mm 78 mm 485 g 500 n Mar 2016 US$ 449ebay.com
9.
 
Canon 2000D 129 mm 101 mm 78 mm 475 g 500 n Feb 2018 US$ 449 amazon.com
10.
 
Canon G7 X Mark II 106 mm 61 mm 42 mm 319 g 265 n Feb 2016 US$ 699ebay.com
11.
 
Canon M6 112 mm 68 mm 45 mm 390 g 295 n Feb 2017 US$ 779ebay.com
12.
 
Nikon D5600 124 mm 97 mm 70 mm 465 g 970 n Nov 2016 US$ 699ebay.com
13.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 US$ 1 399ebay.com
14.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 US$ 1 099ebay.com
15.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 US$ 1 199ebay.com
16.
 
OM System OM-5 125 mm 85 mm 50 mm 414 g 310 Y Oct 2022 US$ 1 199 amazon.com
17.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 US$ 1 199ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will naturally be influenced heavily by the price. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 800D was launched at a markedly lower price (by 38 percent) than the E-M5 III, which puts it into a different market segment. 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. 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.

Of the two cameras under consideration, the Canon 800D features an APS-C sensor and the Olympus E-M5 III a Four Thirds sensor. The sensor area in the E-M5 III is 32 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.0. The sensor in the 800D has a native 3:2 aspect ratio, while the one in the E-M5 III offers a 4:3 aspect.

Canon 800D and Olympus E-M5 III sensor measures

With 24MP, the 800D offers a higher resolution than the E-M5 III (20.2MP), but the 800D nevertheless has larger individual pixels (pixel pitch of 3.72μm versus 3.34μm for the E-M5 III) due to its larger sensor. However, the E-M5 III is a much more recent model (by 2 years and 8 months) than the 800D, 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-M5 III has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon 800D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 800D for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Olympus E-M5 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 800D, the E-M5 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 800D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Olympus OM-D E-M5 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.

800D versus E-M5 III MP

Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 comparators.

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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 800D APS-C 24.0 6000 40001080/60p23.713.1158680
2.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p23.313.1132476
3.
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178
4.
 
Canon 200D APS-C 24.0 6000 40001080/60p23.613.4104179
5.
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.091971
6.
 
Canon 760D APS-C 24.0 6000 40001080/30p22.612.091570
7.
 
Canon 850D APS-C 24.0 6000 40004K/24p24.013.5187383
8.
 
Canon 1300D APS-C 17.9 5184 34561080/30p22.011.778166
9.
 
Canon 2000D APS-C 24.0 6000 40001080/30p22.611.9100971
10.
 
Canon G7 X Mark II 1-inch 20.0 5472 36481080/60p21.811.926062
11.
 
Canon M6 APS-C 24.0 6000 40001080/60p23.412.6131778
12.
 
Nikon D5600 APS-C 24.0 6000 40001080/60p24.114.0130684
13.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
14.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
15.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
16.
 
OM System OM-5 Four Thirds 20.2 5184 38884K/30p23.413.4162278
17.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
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. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the E-M5 III provides a better video resolution than the 800D. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the E-M5 III has an electronic viewfinder (2360k dots), while the 800D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinder in the E-M5 III offers a wider field of view (100%) than the one in the 800D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M5 III has a higher magnification (0.68x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Canon 800D, the Olympus E-M5 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 800Doptical n3.0 / 1040 swivel Y 1/4000s 6.0/s Y n
2.
 
Olympus E-M5 III2360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
3.
 
Canon 77Doptical Y3.0 / 1040 swivel Y 1/4000s 6.0/s Y n
4.
 
Canon 200Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
5.
 
Canon 750Doptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
6.
 
Canon 760Doptical Y3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
7.
 
Canon 850Doptical n3.0 / 1040 swivel Y 1/4000s 7.5/s Y n
8.
 
Canon 1300Doptical n3.0 / 920 fixed n 1/4000s 3.0/s Y n
9.
 
Canon 2000Doptical n3.0 / 920 fixed n 1/4000s 3.0/s Y n
10.
 
Canon G7 X Mark IInone n3.0 / 1040 tilting Y 1/2000s 8.0/s Y Y
11.
 
Canon M6optional n3.0 / 1040 tilting Y 1/4000s 9.0/s Y n
12.
 
Nikon D5600optical n3.2 / 1037 swivel Y 1/4000s 5.0/s Y n
13.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
14.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
15.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
16.
 
OM System OM-52360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
17.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The 800D has one, while the E-M5 III does not. While the built-in flash of the 800D is not very powerful, it can at times be useful as a fill-in light.

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, the E-M5 III is one of those camera that have an additional 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 Olympus E-M5 III has 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.

Concerning the storage of imaging data, both the 800D and the E-M5 III write their files to SDXC cards. The E-M5 III supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the 800D can use UHS-I cards (up to 104 MB/s).

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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 800D and Olympus OM-D E-M5 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 800DYstereo / monoY-mini2.0YYY
2.
 
Olympus E-M5 IIIYstereo / monoY-micro2.0Y-Y
3.
 
Canon 77DYstereo / monoY-mini2.0YYY
4.
 
Canon 200DYstereo / monoY-mini2.0YYY
5.
 
Canon 750DYstereo / monoY-mini2.0YY-
6.
 
Canon 760DYstereo / monoY-mini2.0YY-
7.
 
Canon 850DYstereo / monoY-mini2.0Y-Y
8.
 
Canon 1300DYmono / mono--mini2.0YY-
9.
 
Canon 2000DYmono / mono--mini2.0YY-
10.
 
Canon G7 X Mark II-stereo / mono--micro2.0YY-
11.
 
Canon M6Ystereo / monoY-mini2.0YYY
12.
 
Nikon D5600Ystereo / monoY-mini2.0YYY
13.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
14.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
15.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
16.
 
OM System OM-5Ystereo / monoY-micro2.0Y-Y
17.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-

Both the 800D and the E-M5 III have been discontinued, but can regularly be found used on ebay. The 800D was replaced by the Canon 850D, while the E-M5 III was followed by the OM System OM-5. Further information on the features and operation of the 800D and E-M5 III can be found, respectively, in the Canon 800D Manual (free pdf) or the online Olympus E-M5 III Manual.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon 800D or the Olympus E-M5 III – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

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Reasons to prefer the Canon EOS 800D:

  • More detail: Offers more megapixels (24 vs 20.2MP) with a 11% higher linear resolution.
  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
  • Richer colors: The pixel size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Can take more shots (600 versus 310) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2017).

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Arguments in favor of the Olympus OM-D E-M5 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.
  • Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.68x vs 0.51x).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 6 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (125x85mm vs 131x100mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 118g or 22 percent) and is thus easier to take along.
  • Easier travel charging: Can be conveniently charged via its USB port.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
  • More modern: Reflects 2 years and 8 months of technical progress since the 800D launch.

If the number of relative strengths (bullet points above) is taken as a guide, the E-M5 III is the clear winner of the contest (18 : 12 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.

800D 12:18 E-M5 III

How about other alternatives? Do the specifications of the Canon 800D and the Olympus E-M5 III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 800D or the E-M5 III. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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 800D4.5/5..3.5/580/1004.5/54/5 Feb 2017 US$ 749ebay.com
2.
 
Olympus E-M5 III5/5+5/582/1004.5/54.5/5 Oct 2019 US$ 1 199ebay.com
3.
 
Canon 77D4.5/5..4/582/1004.5/54/5 Feb 2017 US$ 899ebay.com
4.
 
Canon 200D4/5+ +4/578/1004.5/54.5/5 Jun 2017 US$ 549ebay.com
5.
 
Canon 750D5/5....75/1004.5/54.5/5 Feb 2015 US$ 749ebay.com
6.
 
Canon 760D5/5+..77/1004.5/54.5/5 Feb 2015 US$ 649ebay.com
7.
 
Canon 850D4/5+3/580/1004/53.5/5 Feb 2020 US$ 749ebay.com
8.
 
Canon 1300D4/5o4/573/1004/54/5 Mar 2016 US$ 449ebay.com
9.
 
Canon 2000D3/5o3.5/5..3.5/53.5/5 Feb 2018 US$ 449 amazon.com
10.
 
Canon G7 X Mark II4.5/5+ +..81/1004.5/54.5/5 Feb 2016 US$ 699ebay.com
11.
 
Canon M6......80/1004/54/5 Feb 2017 US$ 779ebay.com
12.
 
Nikon D56004/5..4/579/1004.5/54/5 Nov 2016 US$ 699ebay.com
13.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 US$ 1 399ebay.com
14.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 US$ 1 099ebay.com
15.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 US$ 1 199ebay.com
16.
 
OM System OM-55/5..4.5/583/1005/54.5/5 Oct 2022 US$ 1 199 amazon.com
17.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 US$ 1 199ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Check 800D offers at
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Check E-M5 III offers at
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Other camera comparisons

Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon 800D vs Olympus E-M5 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 800D Olympus E-M5 III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Micro Four Thirds lenses
    Launch Date February 2017 October 2019
    Launch Price USD 749 USD 1,199
    Sensor Specs Canon 800D Olympus E-M5 III
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor Four Thirds Sensor
    Sensor Size 22.3 x 14.9 mm 17.3 x 13.0 mm
    Sensor Area 332.27 mm2 224.9 mm2
    Sensor Diagonal 26.8 mm 21.6 mm
    Crop Factor 1.6x 2.0x
    Sensor Resolution 24 Megapixels 20.2 Megapixels
    Image Resolution 6000 x 4000 pixels 5184 x 3888 pixels
    Pixel Pitch 3.72 μm 3.34 μm
    Pixel Density 7.22 MP/cm2 8.96 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/60p Video 4K/30p Video
    ISO Setting 100 - 25,600 ISO 200 - 25,600 ISO
    ISO Boost 100 - 51,200 ISO 64 - 25,600 ISO
    Image Processor DIGIC 7 TruePic VIII
    Screen Specs Canon 800D Olympus E-M5 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.51x 0.68x
    Viewfinder Resolution 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1040k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs Canon 800D Olympus E-M5 III
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 6 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I UHS-II
    Connectivity Specs Canon 800D Olympus E-M5 III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication NFC built-in no NFC
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs Canon 800D Olympus E-M5 III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon LP-E17 Olympus BLS-50
    Battery Life (CIPA)600 shots per charge310 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    125 x 85 x 50 mm
    (4.9 x 3.3 x 2.0 in)
    Camera Weight 532 g (18.8 oz) 414 g (14.6 oz)
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