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Canon T3i vs Sony A7S III

The Canon EOS Rebel T3i (called Canon 600D in some regions) and the Sony Alpha 7S III are two digital cameras that were officially introduced, respectively, in February 2011 and July 2020. The T3i is a DSLR, while the A7S III is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (T3i) and a full frame (A7S III) sensor. The Canon has a resolution of 17.9 megapixels, whereas the Sony provides 12 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 Sony A7S III
Canon T3i Sony A7S III
Digital single lens reflex Mirrorless system camera
Canon EF mount lenses Sony E mount lenses
17.9 MP, APS-C Sensor 12 MP, Full Frame Sensor
1080/30p Video 4K/120p Video
ISO 100-6,400 (100 - 12,800) ISO 80-102,400 (40 - 409,600)
Optical viewfinder Electronic viewfinder (9440k dots)
3.0 LCD, 1040k dots 3.0 LCD, 1440k 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 charge600 shots per battery charge
133 x 100 x 80 mm, 570 g 127 x 97 x 81 mm, 699 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T3i and the Sony Alpha 7S 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

An illustration of the physical size and weight of the Canon T3i and the Sony A7S III is provided 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 size dimensions are rounded to the nearest millimeter.

Size Canon T3i vs Sony A7S III
Compare T3i versus A7S III top
Comparison T3i or A7S III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7S III is notably smaller (7 percent) than the Canon T3i. However, the A7S III is markedly heavier (23 percent) than the T3i. It is noteworthy in this context that the A7S 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 Sony FE Lens Catalog (A7S III). Mirrorless cameras, such as the A7S 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 A7S III can take 600 images on a single charge of its NP-FZ100 power pack. The power pack in the A7S 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.
 
Sony A7S III 127 mm 97 mm 81 mm 699 g 600 Y Jul 2020 3,499 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.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 3,499 i
14.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 3,199i
15.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 4,499i
16.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 3,199i
17.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 2,999i
Notes: 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 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 83 percent) than the A7S III, 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.

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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 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. 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 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 Sony A7S III a full frame sensor. The sensor area in the A7S III is 155 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon T3i and Sony A7S III sensor measures

Despite having a smaller sensor, the Canon T3i offers a higher resolution of 17.9 megapixels, compared with 12 MP of the Sony A7S III. 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 4.31μm versus 8.40μm for the A7S III). Moreover, it should be noted that the A7S III is much more recent (by 9 years and 5 months) than the T3i, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Canon T3i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T3i for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Sony A7S III are 21.2 x 14.2 inches or 53.8 x 36 cm for good quality, 17 x 11.3 inches or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inches or 35.9 x 24 cm for excellent quality prints.

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 Sony Alpha 7S III are ISO 80 to ISO 102400, with the possibility to increase the ISO range to 40-409600.

T3i versus A7S III MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). Of the two cameras under consideration, the A7S III offers substantially better image quality than the T3i (overall score 21 points higher). The advantage is based on 1.6 bits higher color depth, 2.4 EV in additional dynamic range, and 1.7 stops in additional low light sensitivity. 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
    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.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
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.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
14.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
15.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
16.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
17.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385

Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A7S III provides a better video resolution than the T3i. It can shoot movie footage at 4K/120p, while the Canon is limited to 1080/30p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7S III has an electronic viewfinder (9440k 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 A7S 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 A7S III has a higher magnification (0.91x vs 0.53x), 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 T3i and Sony A7S III in connection with corresponding information for a sample of similar cameras.

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Core Features
    Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
(000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
Canon T3ioptical n 3.0 1040 swivel n 1/4000s 3.7 Y n
2.
 
Sony A7S III9440 n 3.0 1440 swivel Y 1/8000s 10.0 n Y
3.
 
Canon SL2optical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
4.
 
Canon T6soptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n
5.
 
Canon T5optical n 3.0 460 fixed n 1/4000s 3.0 Y n
6.
 
Canon SL1optical n 3.0 1040 fixed Y 1/4000s 4.9 Y n
7.
 
Canon T5ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
8.
 
Canon Mnone n 3.0 1040 fixed Y 1/4000s 4.3 n n
9.
 
Canon T4ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
10.
 
Canon T3optical n 2.7 230 fixed n 1/4000s 3.0 Y n
11.
 
Canon T2ioptical n 3.0 1040 fixed n 1/4000s 3.7 Y n
12.
 
Canon T1ioptical n 3.0 920 fixed n 1/4000s 3.4 Y n
13.
 
Sony A7R IV5760 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
14.
 
Sony A7R III3686 n 3.0 1440 tilting Y 1/8000s 10.0 n Y
15.
 
Sony A93686 n 3.0 1440 tilting Y 1/8000s 20.0 n Y
16.
 
Sony A7R II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y
17.
 
Sony A7S II2400 n 3.0 1229 tilting n 1/8000s 5.0 n Y

One difference between the cameras concerns the presence of an on-board flash. The T3i has one, while the A7S 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 A7S 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 T3i writes its imaging data to SDXC cards, while the A7S III uses CFexpress or SDXC cards. The A7S III features dual card slots, which can be very useful in case a memory card fails. In contrast, the T3i only has one slot. The A7S III supports UHS-II cards (on both slots), while the T3i cannot take advantage of Ultra High Speed SD cards.

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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 Rebel T3i and Sony Alpha 7S 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
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon T3iYmonomonoY-mini2.0---
2.
 
Sony A7S IIIYstereomonoYYfull3.2Y-Y
3.
 
Canon SL2YstereomonoY-mini2.0YYY
4.
 
Canon T6sYstereomonoY-mini2.0YY-
5.
 
Canon T5Ymonomono--mini2.0---
6.
 
Canon SL1YmonomonoY-mini2.0---
7.
 
Canon T5iYstereomonoY-mini2.0---
8.
 
Canon MYstereomonoY-mini2.0---
9.
 
Canon T4iYstereomonoY-mini2.0---
10.
 
Canon T3Ystereomono--mini2.0---
11.
 
Canon T2iYstereo-Y-mini2.0---
12.
 
Canon T1iYmonomono--mini2.0---
13.
 
Sony A7R IVYstereomonoYYmicro3.1YYY
14.
 
Sony A7R IIIYstereomonoYYmicro3.1YYY
15.
 
Sony A9YstereomonoYYmicro2.0YYY
16.
 
Sony A7R IIYstereomonoYYmicro2.0YY-
17.
 
Sony A7S IIYstereomonoYYmicro2.0YY-

It is notable that the A7S 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 A7S III is a recent model that features in the current product line-up of Sony. 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 Sony websites.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon T3i or the Sony A7S III – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Reasons to prefer the Canon EOS Rebel T3i:

  • More detail: Offers more megapixels (17.9 vs 12MP) with a 22% higher linear resolution.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Less heavy: Is lighter (by 129g or 18 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (83 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2011).

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Advantages of the Sony Alpha 7S III:

  • Better image quality: Scores substantially higher (21 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.6 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (2.4 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (1.7 stops ISO advantage).
  • Better video: Provides higher definition movie capture (4K/120p vs 1080/30p).
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • 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 (0.91x vs 0.53x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
  • 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.
  • Longer lasting: Gets more shots (600 versus 440) out of a single battery charge.
  • 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 data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
  • 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.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards on both slots.
  • More modern: Reflects 9 years and 5 months of technical progress since the T3i launch.

If the count of relative strengths (bullet points above) is taken as a measure, the A7S III is the clear winner of the contest (26 : 6 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.

T3i 06:26 A7S III

How about other alternatives? Do the specifications of the Canon T3i and the Sony A7S 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the T3i or the A7S III. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], 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 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon T3i3/5o77/1004.5/54.5/5 Feb 2011 599i
2.
 
Sony A7S III..+ +91/1004.5/55/5 Jul 2020 3,499 i
3.
 
Canon SL24/5+ +78/1004.5/54.5/5 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..80/10069/1004/54.5/5 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.
 
Sony A7R IV5/5+91/1004.5/55/5 Jul 2019 3,499 i
14.
 
Sony A7R III..+ +90/1004.5/55/5 Oct 2017 3,199i
15.
 
Sony A95/5+ +89/1005/55/5 Apr 2017 4,499i
16.
 
Sony A7R II5/5+ +90/1005/55/5 Jun 2015 3,199i
17.
 
Sony A7S II5/5+..4.5/55/5 Sep 2015 2,999i
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Canon T3i:
Check Ebay offers
Sony A7S III:
Check Amazon price

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 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 Sony A7S 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 Sony A7S III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Canon EF mount lenses Sony E mount lenses
    Launch Date February 2011 July 2020
    Launch Price USD 599 USD 3,499
    Sensor Specs Canon T3i Sony A7S III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format APS-C Sensor Full Frame Sensor
    Sensor Size 22.3 x 14.9 mm 35.6 x 23.8 mm
    Sensor Area 332.27 mm2 847.28 mm2
    Sensor Diagonal 26.8 mm 42.8 mm
    Crop Factor 1.6x 1.0x
    Sensor Resolution 17.9 Megapixels 12 Megapixels
    Image Resolution 5184 x 3456 pixels 4240 x 2832 pixels
    Pixel Pitch 4.31 μm 8.40 μm
    Pixel Density 5.39 MP/cm2 1.42 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 4K/120p Video
    ISO Setting 100 - 6,400 ISO 80 - 102,400 ISO
    ISO Boost 100 - 12,800 ISO 40 - 409,600 ISO
    Image Processor DIGIC 4 BIONZ XR
    DXO Sensor Quality (score) 65 86
    DXO Color Depth (bits) 22.1 23.7
    DXO Dynamic Range (EV) 11.5 13.9
    DXO Low Light (ISO) 793 2520
    Screen Specs Canon T3i Sony A7S III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.91x
    Viewfinder Resolution 9440k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1440k dots
    LCD Attachment Swivel screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Canon T3i Sony A7S III
    Focus System Phase-detect AF Contrast-detect AF
    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
    Shutter Life Expectancy100 000 actuations200 000 actuations
    Electronic Shutterno E-ShutterYES
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Build-in Flash no On-Board Flash
    Storage Medium SDXC cards CFexpress or SDXC cards
    Second Storage Option Single card slot Dual card slots
    UHS card support no Dual UHS-II
    Connectivity Specs Canon T3i Sony A7S III
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 3.2
    HDMI Port mini HDMI full HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket no Headphone port Headphone port
    Wifi Support no Wifi Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Canon T3i Sony A7S III
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type LP-E8 NP-FZ100
    Battery Life (CIPA)440 shots per charge600 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)
    127 x 97 x 81 mm
    (5.0 x 3.8 x 3.2 in)
    Camera Weight 570 g (20.1 oz) 699 g (24.7 oz)

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