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Canon T3i vs Olympus E-M5 III

The Canon EOS Rebel T3i (called Canon 600D in some regions) and the Olympus OM-D E-M5 Mark III are two digital cameras that were announced, respectively, in February 2011 and October 2019. The T3i is a DSLR, while the E-M5 III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (T3i) and a Four Thirds (E-M5 III) sensor. The Canon has a resolution of 17.9 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 T3i
versus
Olympus E-M5 III
Canon T3i   Olympus E-M5 III
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Micro Four Thirds lenses
17.9 MP – APS-C sensor 20.2 MP – Four Thirds sensor
1080/30p Video 4K/30p Video
ISO 100-6,400 (100 - 12,800) ISO 200-25,600
Optical viewfinder Electronic viewfinder (2360k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1040k dots
Swivel screen (not touch-sensitive) Swivel touchscreen
3.7 shutter flaps per second 10 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
440 shots per battery charge310 shots per battery charge
133 x 100 x 80 mm, 570 g 125 x 85 x 50 mm, 414 g
Canon T3i:
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Olympus E-M5 III:
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i

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T3i 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.

Body comparison

The physical size and weight of the Canon T3i and the Olympus E-M5 III are illustrated in the side-by-side display below. 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 measures are rounded to the nearest millimeter.

The E-M5 III can be obtained in two different colors (black, silver), while the T3i is only available in black.

Size Canon T3i vs Olympus E-M5 III
Compare T3i versus E-M5 III top
Comparison T3i 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 (20 percent) than the Canon T3i. Moreover, the E-M5 III is markedly lighter (27 percent) than the T3i. It is noteworthy in this context that the E-M5 III is splash and dust-proof, while the T3i 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 (T3i) 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 T3i gets 440 shots out of its LP-E8 battery, while the E-M5 III can take 310 images on a single charge of its 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 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.

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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 T3i 133 mm 100 mm 80 mm 570 g 440 n Feb 2011 599i
2.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 1,199 i
3.
 
Canon SL2 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549i
4.
 
Canon T6s 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649i
5.
 
Canon T5 130 mm 100 mm 78 mm 480 g 500 n Feb 2014 449i
6.
 
Canon SL1 117 mm 91 mm 69 mm 407 g 380 n Mar 2013 549i
7.
 
Canon T5i 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 649i
8.
 
Canon M 109 mm 66 mm 32 mm 298 g 230 n Jul 2012 599i
9.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849i
10.
 
Canon T3 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 449i
11.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699i
12.
 
Canon T1i 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 799i
13.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 1,199i
14.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 1,099i
15.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 1,399i
16.
 
Olympus E-M5 122 mm 89 mm 43 mm 425 g 360 Y Feb 2012 1,299i
17.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 1,199i
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The T3i was launched at a markedly lower price (by 50 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.

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Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon T3i 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 T3i has a native 3:2 aspect ratio, while the one in the E-M5 III offers a 4:3 aspect.

Canon T3i and Olympus E-M5 III sensor measures

Despite having a smaller sensor, the E-M5 III offers a higher resolution of 20.2 megapixels, compared with 17.9 MP of the T3i. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.34μm versus 4.31μm for the T3i). However, it should be noted that the E-M5 III is much more recent (by 8 years and 8 months) than the T3i, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. 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 E-M5 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the T3i, 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 Rebel T3i has a native sensitivity range from ISO 100 to ISO 6400, which can be extended to ISO 100-12800. 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.

T3i versus E-M5 III MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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
    Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon T3i APS-C 17.9 5184 34561080/30p22.111.579365
2.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p23.313.1132476
3.
 
Canon SL2 APS-C 24.0 6000 40001080/60p23.613.4104179
4.
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570
5.
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463
6.
 
Canon SL1 APS-C 17.9 5184 34561080/30p21.811.384363
7.
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161
8.
 
Canon M APS-C 17.9 5184 34561080/30p22.111.282765
9.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
10.
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562
11.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
12.
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363
13.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
14.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
15.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
16.
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671
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 can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the E-M5 III provides a better video resolution than the T3i. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/30p.

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Feature comparison

Beyond 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 T3i 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 T3i (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 0.53x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon T3i and Olympus E-M5 III 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)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon T3ioptical n3.0 / 1040 swivel n 1/4000s 3.7/s Y n
2.
 
Olympus E-M5 III2360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
3.
 
Canon SL2optical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
4.
 
Canon T6soptical Y3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
5.
 
Canon T5optical n3.0 / 460 fixed n 1/4000s 3.0/s Y n
6.
 
Canon SL1optical n3.0 / 1040 fixed Y 1/4000s 4.9/s Y n
7.
 
Canon T5ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
8.
 
Canon Mnone n3.0 / 1040 fixed Y 1/4000s 4.3/s n n
9.
 
Canon T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
10.
 
Canon T3optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
11.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
12.
 
Canon T1ioptical n3.0 / 920 fixed n 1/4000s 3.4/s Y n
13.
 
Olympus PEN-F2360 n3.0 / 1037 swivel 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 E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
16.
 
Olympus E-M51440 n3.0 / 610 tilting Y 1/4000s 9.0/s n Y
17.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
Notes: *) 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 T3i has one, while the E-M5 III does not. While the built-in flash of the T3i 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 T3i 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 T3i cannot take advantage of Ultra High Speed SD cards.

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 Rebel T3i 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
    Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon T3iYmono / monoY-mini2.0---
2.
 
Olympus E-M5 IIIYstereo / monoY-micro2.0Y-Y
3.
 
Canon SL2Ystereo / monoY-mini2.0YYY
4.
 
Canon T6sYstereo / monoY-mini2.0YY-
5.
 
Canon T5Ymono / mono--mini2.0---
6.
 
Canon SL1Ymono / monoY-mini2.0---
7.
 
Canon T5iYstereo / monoY-mini2.0---
8.
 
Canon MYstereo / monoY-mini2.0---
9.
 
Canon T4iYstereo / monoY-mini2.0---
10.
 
Canon T3Ystereo / mono--mini2.0---
11.
 
Canon T2iYstereo / -Y-mini2.0---
12.
 
Canon T1iYmono / mono--mini2.0---
13.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
14.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
15.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
16.
 
Olympus E-M5Ystereo / mono--mini2.0---
17.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-

It is notable that the E-M5 III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the T3i does not provide wifi capability.

The E-M5 III is a recent model that features in the current product line-up of Olympus. In contrast, the T3i has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the T3i was succeeded by the Canon T4i. 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.

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Review summary

So what conclusions can be drawn? Is the Canon T3i better than the Olympus E-M5 III or vice versa? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the Canon EOS Rebel T3i:

  • Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Longer lasting: Can take more shots (440 versus 310) on a single battery charge.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (50 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2011).

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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 1080/30p).
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • 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 0.53x).
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3.7 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 133x100mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 156g or 27 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.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-II standard.
  • More modern: Reflects 8 years and 8 months of technical progress since the T3i launch.

If the count of relative strengths (bullet points above) is taken as a measure, the E-M5 III is the clear winner of the contest (22 : 6 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

T3i 06:22 E-M5 III

How about other alternatives? Do the specifications of the Canon T3i 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 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 T3i or the E-M5 III perform in practice. 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 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
     Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon T3i3/5o..77/1004.5/54.5/5 Feb 2011 599i
2.
 
Olympus E-M5 III5/5+5/582/1004.5/54.5/5 Oct 2019 1,199 i
3.
 
Canon SL24/5+ +4/578/1004.5/54.5/5 Jun 2017 549i
4.
 
Canon T6s5/5+..77/1004.5/54.5/5 Feb 2015 649i
5.
 
Canon T53/5+....4/54.5/5 Feb 2014 449i
6.
 
Canon SL14/5+..78/1004/54/5 Mar 2013 549i
7.
 
Canon T5i......76/1004.5/54.5/5 Mar 2013 649i
8.
 
Canon M3/5+....4/54/5 Jul 2012 599i
9.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 849i
10.
 
Canon T3..80/100..69/1004/54.5/5 Feb 2011 449i
11.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 699i
12.
 
Canon T1i..+ +..74/1004.5/54.5/5 Mar 2009 799i
13.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 1,199i
14.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 1,099i
15.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 1,399i
16.
 
Olympus E-M54/5+ +..80/1004.5/55/5 Feb 2012 1,299i
17.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 1,199i
Notes: (+ +) 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. A score, therefore, has to be seen in close connection to the price and market introduction time 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.

Canon T3i:
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i
Olympus E-M5 III:
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i

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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: Canon T3i 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 T3i 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 2011 October 2019
    Launch Price USD 599 USD 1,199
    Sensor Specs Canon T3i 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 17.9 Megapixels 20.2 Megapixels
    Image Resolution 5184 x 3456 pixels 5184 x 3888 pixels
    Pixel Pitch 4.31 μm 3.34 μm
    Pixel Density 5.39 MP/cm2 8.96 MP/cm2
    Moiré control Anti-Alias filter no AA filter
    Movie Capability 1080/30p Video 4K/30p Video
    ISO Setting 100 - 6,400 ISO 200 - 25,600 ISO
    ISO Boost 100 - 12,800 ISO 64 - 25,600 ISO
    Image Processor DIGIC 4 TruePic VIII
    DXO Sensor Quality (score) 65 ..
    DXO Color Depth (bits) 22.1 ..
    DXO Dynamic Range (EV) 11.5 ..
    DXO Low Light (ISO) 793 ..
    Screen Specs Canon T3i Olympus E-M5 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 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 no Touchscreen Touchscreen
    Shooting Specs Canon T3i 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 3.7 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
    Second Storage Option Single card slot Single card slot
    UHS card support no UHS-II
    Connectivity Specs Canon T3i 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 no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Canon T3i Olympus E-M5 III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type LP-E8 BLS-50
    Battery Life (CIPA)440 shots per charge310 shots per charge
    In-Camera Charging no USB charging USB charging
    Body Dimensions 133 x 100 x 80 mm
    (5.2 x 3.9 x 3.1 in)
    125 x 85 x 50 mm
    (4.9 x 3.3 x 2.0 in)
    Camera Weight 570 g (20.1 oz) 414 g (14.6 oz)
    Canon T3i:
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    Olympus E-M5 III:
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