Canon 850D vs Olympus E-M1
The Canon EOS 850D (called Canon T8i in some regions) and the Olympus OM-D E-M1 are two digital cameras that were revealed to the public, respectively, in February 2020 and September 2013. The 850D is a DSLR, while the E-M1 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (850D) and a Four Thirds (E-M1) sensor. The Canon has a resolution of 24 megapixels, whereas the Olympus provides 15.9 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Check 850D offers at
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Check E-M1 offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 850D and the Olympus OM-D E-M1? 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.
Body comparison
The physical size and weight of the Canon 850D and the Olympus E-M1 are illustrated in the side-by-side display below. 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 measures are rounded to the nearest millimeter.
The E-M1 can be obtained in two different colors (black, silver), while the 850D is only available in black.



If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M1 is notably smaller (9 percent) than the Canon 850D. Moreover, the E-M1 is slightly lighter (3 percent) than the 850D. It is noteworthy in this context that the E-M1 is splash and dust-proof, while the 850D 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 (850D) and the Micro Four Thirds Lens Catalog (E-M1). Mirrorless cameras, such as the E-M1, 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 850D gets 800 shots out of its Canon LP-E17 battery, while the E-M1 can take 350 images on a single charge of its Olympus BLN-1 power pack.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

| Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Canon 850D | 131 mm | 103 mm | 76 mm | 515 g | 800 | n | Feb 2020 | EUR 899 | ebay.com | |
| 2. | Olympus E-M1 | 130 mm | 94 mm | 63 mm | 497 g | 350 | Y | Sep 2013 | EUR 1 499 | ebay.com | |
| 3. | Canon 77D | 131 mm | 100 mm | 76 mm | 540 g | 600 | n | Feb 2017 | EUR 899 | ebay.com | |
| 4. | Canon 200D | 122 mm | 93 mm | 70 mm | 453 g | 650 | n | Jun 2017 | EUR 599 | ebay.com | |
| 5. | Canon 250D | 122 mm | 93 mm | 70 mm | 449 g | 1070 | n | Apr 2019 | EUR 549 | amazon.com | |
| 6. | Canon 750D | 132 mm | 101 mm | 78 mm | 555 g | 440 | n | Feb 2015 | EUR 699 | ebay.com | |
| 7. | Canon 760D | 132 mm | 101 mm | 78 mm | 565 g | 440 | n | Feb 2015 | EUR 749 | ebay.com | |
| 8. | Canon 800D | 131 mm | 100 mm | 76 mm | 532 g | 600 | n | Feb 2017 | EUR 849 | ebay.com | |
| 9. | Canon 2000D | 129 mm | 101 mm | 78 mm | 475 g | 500 | n | Feb 2018 | EUR 499 | amazon.com | |
| 10. | Canon G5 X Mark II | 111 mm | 61 mm | 46 mm | 340 g | 230 | n | Jul 2019 | EUR 929 | ebay.com | |
| 11. | Canon G7 X Mark III | 105 mm | 61 mm | 41 mm | 304 g | 235 | n | Jul 2019 | EUR 779 | amazon.com | |
| 12. | Canon RP | 133 mm | 85 mm | 70 mm | 485 g | 250 | n | Feb 2019 | EUR 1 499 | amazon.com | |
| 13. | Olympus E-M1 II | 134 mm | 91 mm | 67 mm | 574 g | 440 | Y | Sep 2016 | EUR 1 999 | ebay.com | |
| 14. | Olympus E-M5 | 122 mm | 89 mm | 43 mm | 425 g | 360 | Y | Feb 2012 | EUR 1 099 | ebay.com | |
| 15. | Olympus E-M5 II | 124 mm | 85 mm | 45 mm | 469 g | 310 | Y | Feb 2015 | EUR 1 099 | ebay.com | |
| 16. | Olympus E-P5 | 122 mm | 69 mm | 37 mm | 420 g | 330 | n | May 2013 | EUR 999 | ebay.com | |
| 17. | Panasonic GH4 | 133 mm | 93 mm | 84 mm | 560 g | 500 | Y | Feb 2014 | EUR 1 499 | ebay.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 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 850D was launched at a markedly lower price (by 46 percent) than the E-M1, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon 850D features an APS-C sensor and the Olympus E-M1 a Four Thirds sensor. The sensor area in the E-M1 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 850D has a native 3:2 aspect ratio, while the one in the E-M1 offers a 4:3 aspect.

With 24MP, the 850D offers a higher resolution than the E-M1 (15.9MP), but the 850D has marginally smaller individual pixels (pixel pitch of 3.72μm versus 3.76μm for the E-M1). However, the 850D is a much more recent model (by 6 years and 5 months) than the E-M1, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the E-M1 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon 850D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 850D 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-M1 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.
The Canon EOS 850D 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-M1 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
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.

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.

| Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Canon 850D | APS-C | 24.0 | 6000 | 4000 | 4K/24p | 24.0 | 13.5 | 1873 | 83 | |
| 2. | Olympus E-M1 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 23.0 | 12.7 | 757 | 73 | |
| 3. | Canon 77D | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.6 | 13.3 | 971 | 78 | |
| 4. | Canon 200D | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.6 | 13.4 | 1041 | 79 | |
| 5. | Canon 250D | APS-C | 24.0 | 6000 | 4000 | 4K/25p | 23.9 | 13.4 | 1791 | 82 | |
| 6. | Canon 750D | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.7 | 12.0 | 919 | 71 | |
| 7. | Canon 760D | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.6 | 12.0 | 915 | 70 | |
| 8. | Canon 800D | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 23.7 | 13.1 | 1586 | 80 | |
| 9. | Canon 2000D | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.6 | 11.9 | 1009 | 71 | |
| 10. | Canon G5 X Mark II | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.4 | 583 | 65 | |
| 11. | Canon G7 X Mark III | 1-inch | 20.0 | 5472 | 3648 | 4K/30p | 22.2 | 12.4 | 583 | 65 | |
| 12. | Canon RP | Full Frame | 26.0 | 6240 | 4160 | 4K/30p | 24.3 | 11.9 | 2977 | 85 | |
| 13. | Olympus E-M1 II | Four Thirds | 20.2 | 5184 | 3888 | 4K/30p | 23.7 | 12.8 | 1312 | 80 | |
| 14. | Olympus E-M5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/60i | 22.8 | 12.3 | 826 | 71 | |
| 15. | Olympus E-M5 II | Four Thirds | 15.9 | 4608 | 3456 | 1080/60p | 23.0 | 12.5 | 842 | 73 | |
| 16. | Olympus E-P5 | Four Thirds | 15.9 | 4608 | 3456 | 1080/30p | 22.8 | 12.4 | 895 | 72 | |
| 17. | Panasonic GH4 | Four Thirds | 15.9 | 4608 | 3456 | 4K/30p | 23.2 | 12.8 | 791 | 74 | |
| 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 850D provides a higher video resolution than the E-M1. It can shoot video footage at 4K/24p, while the Olympus is limited to 1080/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the E-M1 has an electronic viewfinder (2360k dots), while the 850D 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-M1 offers a wider field of view (100%) than the one in the 850D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the E-M1 has a higher magnification (0.74x vs 0.51x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 850D and Olympus E-M1 in connection with corresponding information for a sample of similar cameras.

| 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 850D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 7.5/s | Y | n | |
| 2. | Olympus E-M1 | 2360 | n | 3.0 / 1037 | tilting | Y | 1/8000s | 10.0/s | n | Y | |
| 3. | Canon 77D | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 6.0/s | Y | n | |
| 4. | Canon 200D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
| 5. | Canon 250D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
| 6. | Canon 750D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
| 7. | Canon 760D | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
| 8. | Canon 800D | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 6.0/s | Y | n | |
| 9. | Canon 2000D | optical | n | 3.0 / 920 | fixed | n | 1/4000s | 3.0/s | Y | n | |
| 10. | Canon G5 X Mark II | 2360 | n | 3.0 / 1040 | tilting | Y | 1/2000s | 30/s | Y | Y | |
| 11. | Canon G7 X Mark III | none | n | 3.0 / 1040 | tilting | Y | 1/2000s | 30/s | Y | Y | |
| 12. | Canon RP | 2360 | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | n | n | |
| 13. | Olympus E-M1 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 18.0/s | n | Y | |
| 14. | Olympus E-M5 | 1440 | n | 3.0 / 610 | tilting | Y | 1/4000s | 9.0/s | n | Y | |
| 15. | Olympus E-M5 II | 2360 | n | 3.0 / 1037 | swivel | Y | 1/8000s | 10.0/s | n | Y | |
| 16. | Olympus E-P5 | optional | n | 3.0 / 1037 | tilting | Y | 1/8000s | 9.0/s | Y | Y | |
| 17. | Panasonic GH4 | 2359 | n | 3.0 / 1036 | swivel | Y | 1/8000s | 12.0/s | Y | n | |
| 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 850D has one, while the E-M1 does not. While the built-in flash of the 850D is not very powerful, it can at times be useful as a fill-in light.
The 850D has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the E-M1 does not have a selfie-screen.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-M1 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 Canon 850D and the Olympus E-M1 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.
Concerning the storage of imaging data, both the 850D and the E-M1 write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
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 850D and Olympus OM-D E-M1 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

| Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Canon 850D | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | Y | |
| 2. | Olympus E-M1 | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
| 3. | Canon 77D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
| 4. | Canon 200D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
| 5. | Canon 250D | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | Y | |
| 6. | Canon 750D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
| 7. | Canon 760D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
| 8. | Canon 800D | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | Y | |
| 9. | Canon 2000D | Y | mono / mono | - | - | mini | 2.0 | Y | Y | - | |
| 10. | Canon G5 X Mark II | - | stereo / mono | - | - | micro | 3.1 | Y | - | Y | |
| 11. | Canon G7 X Mark III | - | stereo / mono | Y | - | micro | 3.1 | Y | - | Y | |
| 12. | Canon RP | Y | stereo / mono | Y | Y | micro | 2.0 | Y | - | Y | |
| 13. | Olympus E-M1 II | Y | stereo / mono | Y | Y | micro | 3.0 | Y | - | - | |
| 14. | Olympus E-M5 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
| 15. | Olympus E-M5 II | Y | stereo / mono | Y | - | micro | 2.0 | Y | - | - | |
| 16. | Olympus E-P5 | Y | stereo / mono | - | - | micro | 2.0 | Y | - | - | |
| 17. | Panasonic GH4 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - |
Studio photographers will appreciate that the Olympus E-M1 (unlike the 850D) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 850D and the E-M1 have been discontinued, but can regularly be found used on ebay. The E-M1 was replaced by the Olympus E-M1 II, while the 850D does not have a direct successor. Further information on the features and operation of the 850D and E-M1 can be found, respectively, in the Canon 850D Manual (free pdf) or the online Olympus E-M1 Manual.
Review summary
So what conclusions can be drawn? Is the Canon 850D better than the Olympus E-M1 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Canon EOS 850D:
- More detail: Offers more megapixels (24 vs 15.9MP) with a 25% 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 (4K/24p vs 1080/30p).
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Longer lasting: Can take more shots (800 versus 350) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
- More modern: Reflects 6 years and 5 months of technical progress since the E-M1 launch.

Advantages of the Olympus OM-D E-M1:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- 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 (0.74x 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 7.5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- 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.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been around for much longer (launched in September 2013).
If the number of relative strengths (bullet points above) is taken as a guide, the 850D emerges as the winner of the contest (15 : 12 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon 850D and the Olympus E-M1 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 says little about, for example, the shooting experience and imaging performance of the 850D and the E-M1 in practical situations. 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 hands-on reviews by experts 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.

| Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price |
Street Price |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | Canon 850D | 4/5 | + | 3/5 | 80/100 | 4/5 | 3.5/5 | Feb 2020 | EUR 899 | ebay.com | |
| 2. | Olympus E-M1 | 5/5 | + + | .. | 84/100 | 4.5/5 | 4.5/5 | Sep 2013 | EUR 1 499 | ebay.com | |
| 3. | Canon 77D | 4.5/5 | .. | 4/5 | 82/100 | 4.5/5 | 4/5 | Feb 2017 | EUR 899 | ebay.com | |
| 4. | Canon 200D | 4/5 | + + | 4/5 | 78/100 | 4.5/5 | 4.5/5 | Jun 2017 | EUR 599 | ebay.com | |
| 5. | Canon 250D | 4/5 | o | 4.5/5 | 79/100 | 4/5 | 4/5 | Apr 2019 | EUR 549 | amazon.com | |
| 6. | Canon 750D | 5/5 | .. | .. | 75/100 | 4.5/5 | 4.5/5 | Feb 2015 | EUR 699 | ebay.com | |
| 7. | Canon 760D | 5/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Feb 2015 | EUR 749 | ebay.com | |
| 8. | Canon 800D | 4.5/5 | .. | 3.5/5 | 80/100 | 4.5/5 | 4/5 | Feb 2017 | EUR 849 | ebay.com | |
| 9. | Canon 2000D | 3/5 | o | 3.5/5 | .. | 3.5/5 | 3.5/5 | Feb 2018 | EUR 499 | amazon.com | |
| 10. | Canon G5 X Mark II | 4/5 | + | 4/5 | 82/100 | .. | 4/5 | Jul 2019 | EUR 929 | ebay.com | |
| 11. | Canon G7 X Mark III | .. | + + | 4/5 | 81/100 | 4/5 | .. | Jul 2019 | EUR 779 | amazon.com | |
| 12. | Canon RP | 4/5 | + | 4/5 | .. | 4.5/5 | 4/5 | Feb 2019 | EUR 1 499 | amazon.com | |
| 13. | Olympus E-M1 II | 5/5 | + + | 5/5 | 85/100 | 4.5/5 | 4.5/5 | Sep 2016 | EUR 1 999 | ebay.com | |
| 14. | Olympus E-M5 | 4/5 | + + | .. | 80/100 | 4.5/5 | 5/5 | Feb 2012 | EUR 1 099 | ebay.com | |
| 15. | Olympus E-M5 II | 5/5 | + + | 4.5/5 | 81/100 | 5/5 | 5/5 | Feb 2015 | EUR 1 099 | ebay.com | |
| 16. | Olympus E-P5 | 5/5 | + + | .. | 78/100 | 4.5/5 | 5/5 | May 2013 | EUR 999 | ebay.com | |
| 17. | Panasonic GH4 | 5/5 | + + | .. | 85/100 | 5/5 | 5/5 | Feb 2014 | EUR 1 499 | ebay.com | |
| Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. | |||||||||||
The review scores listed above should be treated with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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.

Check 850D offers at
ebay.com

Check E-M1 offers at
ebay.com
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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1100D vs Canon 850D
- Canon 1300D vs Olympus E-M1
- Canon 40D vs Canon 850D
- Canon 850D vs Fujifilm X-T10
- Canon 850D vs Fujifilm X100VI
- Canon 850D vs Leica M-E Typ 240
- Canon 850D vs Sony A7R III
- Olympus E-M1 vs Olympus E-PL3
- Olympus E-M1 vs Panasonic GF2
- Olympus E-M1 vs Sony NEX-6
- Olympus E-M1 vs Sony RX10 III
- Olympus E-M1 vs Zeiss ZX1
Specifications: Canon 850D vs Olympus E-M1
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 Model | Canon 850D | Olympus E-M1 |
|---|---|---|
| Camera Type | Digital single lens reflex | Mirrorless system camera |
| Camera Lens | Canon EF mount lenses | Micro Four Thirds lenses |
| Launch Date | February 2020 | September 2013 |
| Launch Price | USD 749 | USD 1,399 |
| Sensor Specs | Canon 850D | Olympus E-M1 |
| 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 | 15.9 Megapixels |
| Image Resolution | 6000 x 4000 pixels | 4608 x 3456 pixels |
| Pixel Pitch | 3.72 μm | 3.76 μm |
| Pixel Density | 7.22 MP/cm2 | 7.08 MP/cm2 |
| Moiré control | Anti-Alias filter | no AA filter |
| Movie Capability | 4K/24p Video | 1080/30p Video |
| ISO Setting | 100 - 25,600 ISO | 200 - 25,600 ISO |
| ISO Boost | 100 - 51,200 ISO | 100 - 25,600 ISO |
| Image Processor | DIGIC 8 | TruePIC VII |
| DXO Sensor Quality (score) | .. | 73 |
| DXO Color Depth (bits) | .. | 23.0 |
| DXO Dynamic Range (EV) | .. | 12.7 |
| DXO Low Light (ISO) | .. | 757 |
| Screen Specs | Canon 850D | Olympus E-M1 |
| Viewfinder Type | Optical viewfinder | Electronic viewfinder |
| Viewfinder Field of View | 95% | 100% |
| Viewfinder Magnification | 0.51x | 0.74x |
| Viewfinder Resolution | 2360k dots | |
| LCD Framing | Live View | Live View |
| Rear LCD Size | 3.0inch | 3.0inch |
| LCD Resolution | 1040k dots | 1037k dots |
| LCD Attachment | Swivel screen | Tilting screen |
| Touch Input | Touchscreen | Touchscreen |
| Shooting Specs | Canon 850D | Olympus E-M1 |
| Focus System | Phase-detect AF | On-Sensor Phase-detect |
| Manual Focusing Aid | Focus Peaking | Focus Peaking |
| Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
| Continuous Shooting | 7.5 shutter flaps/s | 10 shutter flaps/s |
| Shutter Life Expectancy | 100 000 actuations | 150 000 actuations |
| Electronic Shutter | no E-Shutter | YES |
| Time-Lapse Photography | Intervalometer built-in | Intervalometer built-in |
| Image Stabilization | Lens stabilization only | In-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-I |
| Connectivity Specs | Canon 850D | Olympus E-M1 |
| External Flash | Hotshoe | Hotshoe |
| Studio Flash | no PC Sync | PC Sync socket |
| 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 |
| Bluetooth Support | Bluetooth built-in | no Bluetooth |
| Body Specs | Canon 850D | Olympus E-M1 |
| Environmental Sealing | not weather sealed | Weathersealed body |
| Battery Type | Canon LP-E17 | Olympus BLN-1 |
| Battery Life (CIPA) | 800 shots per charge | 350 shots per charge |
| Body Dimensions |
131 x 103 x 76 mm (5.2 x 4.1 x 3.0 in) |
130 x 94 x 63 mm (5.1 x 3.7 x 2.5 in) |
| Camera Weight | 515 g (18.2 oz) | 497 g (17.5 oz) |

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