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Canon T3i vs Sony A77 II

The Canon EOS Rebel T3i (called Canon 600D in some regions) and the Sony Alpha SLT-A77 II are two digital cameras that were announced, respectively, in February 2011 and May 2014. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The Canon has a resolution of 17.9 megapixels, whereas the Sony provides 24 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 A77 II
Canon T3i   Sony A77 II
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Sony A mount lenses
17.9 MP – APS-C sensor 24 MP – APS-C sensor
1080/30p Video 1080/60p Video
ISO 100-6,400 (100 - 12,800) ISO 100-25,600 (50 - 51,200)
Optical viewfinder Electronic viewfinder (2359k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1229k dots
Swivel screen (not touch-sensitive) Fully flexible screen (no touchscreen)
3.7 shutter flaps per second 12 shutter flaps per second
Lens stabilization onlyIn-body stabilization
not weather sealedWeathersealed body
440 shots per battery charge480 shots per battery charge
133 x 100 x 80 mm, 570 g 143 x 104 x 81 mm, 647 g
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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T3i and the Sony Alpha SLT-A77 II? 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 T3i and the Sony A77 II. 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.

Size Canon T3i vs Sony A77 II
Compare T3i versus A77 II top
Comparison T3i or A77 II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 II is notably larger (12 percent) than the Canon T3i. Moreover, the A77 II is markedly heavier (14 percent) than the T3i. It is noteworthy in this context that the A77 II 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the T3i gets 440 shots out of its Canon LP-E8 battery, while the A77 II can take 480 images on a single charge of its Sony NP-FM500H 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.

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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 T3i 133 mm 100 mm 80 mm 570 g 440 n Feb 2011 EUR 549ebay.com
2.
 
Sony A77 II 143 mm 104 mm 81 mm 647 g 480 Y May 2014 EUR 1 199ebay.com
3.
 
Canon M 109 mm 66 mm 32 mm 298 g 230 n Jul 2012 EUR 599ebay.com
4.
 
Canon SL1 117 mm 91 mm 69 mm 407 g 380 n Mar 2013 EUR 499ebay.com
5.
 
Canon T1i 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 EUR 699ebay.com
6.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 EUR 649ebay.com
7.
 
Canon T3 130 mm 100 mm 78 mm 495 g 700 n Feb 2011 EUR 399ebay.com
8.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 EUR 799ebay.com
9.
 
Canon T5 130 mm 100 mm 78 mm 480 g 500 n Feb 2014 EUR 399ebay.com
10.
 
Canon T5i 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 EUR 599ebay.com
11.
 
Canon T6 129 mm 101 mm 78 mm 485 g 500 n Mar 2016 EUR 449ebay.com
12.
 
Canon T6s 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 EUR 749ebay.com
13.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 EUR 1 199ebay.com
14.
 
Sony A7 II 127 mm 96 mm 60 mm 599 g 350 Y Nov 2014 EUR 2 099ebay.com
15.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 EUR 3 399ebay.com
16.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 EUR 5 299ebay.com
17.
 
Sony A77 143 mm 104 mm 81 mm 732 g 470 Y Aug 2011 EUR 1 299ebay.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 T3i was launched at a markedly lower price (by 50 percent) than the A77 II, 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 sensor inside a digital camera is one of the key determinants 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 more expensive and lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the A77 II is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (T3i) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon T3i and Sony A77 II sensor measures

With 24MP, the A77 II offers a higher resolution than the T3i (17.9MP), but the A77 II has smaller individual pixels (pixel pitch of 3.91μm versus 4.31μm for the T3i). Yet, the A77 II is a much more recent model (by 3 years and 2 months) than the T3i, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.

The resolution advantage of the Sony A77 II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 II 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 Canon T3i are 25.9 x 17.3 inches or 65.8 x 43.9 cm for good quality, 20.7 x 13.8 inches or 52.7 x 35.1 cm for very good quality, and 17.3 x 11.5 inches or 43.9 x 29.3 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 SLT-A77 II are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.

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.

T3i versus A77 II 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"). Of the two cameras under consideration, the A77 II offers substantially better image quality than the T3i (overall score 17 points higher). The advantage is based on 2.3 bits higher color depth, 1.9 EV in additional dynamic range, and 0.4 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
  empty 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 A77 II APS-C 24.0 6000 40001080/60p24.413.4101382
3.
 
Canon M APS-C 17.9 5184 34561080/30p22.111.282765
4.
 
Canon SL1 APS-C 17.9 5184 34561080/30p21.811.384363
5.
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363
6.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
7.
 
Canon T3 APS-C 12.2 4272 2848720/30p21.911.075562
8.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
9.
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463
10.
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161
11.
 
Canon T6 APS-C 17.9 5184 34561080/30p22.011.778166
12.
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570
13.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
14.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
15.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
16.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
17.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178

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 A77 II provides a faster frame rate than the T3i. It can shoot movie footage at 1080/60p, 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 variety of features. For example, the A77 II has an electronic viewfinder (2359k 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 A77 II 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 A77 II has a higher magnification (0.73x 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 Sony A77 II along with similar information for a selection of comparators.

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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 T3ioptical n3.0 / 1040 swivel n 1/4000s 3.7/s Y n
2.
 
Sony A77 II2359 Y3.0 / 1229 full-flex n 1/8000s 12.0/s Y Y
3.
 
Canon Mnone n3.0 / 1040 fixed Y 1/4000s 4.3/s n n
4.
 
Canon SL1optical n3.0 / 1040 fixed Y 1/4000s 4.9/s Y n
5.
 
Canon T1ioptical n3.0 / 920 fixed n 1/4000s 3.4/s Y n
6.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
7.
 
Canon T3optical n2.7 / 230 fixed n 1/4000s 3.0/s Y n
8.
 
Canon T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
9.
 
Canon T5optical n3.0 / 460 fixed n 1/4000s 3.0/s Y n
10.
 
Canon T5ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
11.
 
Canon T6optical n3.0 / 920 fixed n 1/4000s 3.0/s Y n
12.
 
Canon T6soptical Y3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
13.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
14.
 
Sony A7 II2400 n3.0 / 1230 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
16.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
17.
 
Sony A772359 Y3.0 / 921 full-flex n 1/8000s 12.0/s Y Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the A77 II and the T3i is in-body image stabilization (IBIS). The A77 II reduces the risk of handshake-induced blur with all attached lenses, while the T3i offers no blur reduction with lenses that themselves do not provide optical image stabilization.

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 T3i writes its imaging data to SDXC cards, while the A77 II uses SDXC or Memory Stick PRO Duo cards. The A77 II supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), 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 SLT-A77 II 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 T3iYmono / monoY-mini2.0---
2.
 
Sony A77 IIYstereo / monoY-mini2.0YY-
3.
 
Canon MYstereo / monoY-mini2.0---
4.
 
Canon SL1Ymono / monoY-mini2.0---
5.
 
Canon T1iYmono / mono--mini2.0---
6.
 
Canon T2iYstereo / -Y-mini2.0---
7.
 
Canon T3Ystereo / mono--mini2.0---
8.
 
Canon T4iYstereo / monoY-mini2.0---
9.
 
Canon T5Ymono / mono--mini2.0---
10.
 
Canon T5iYstereo / monoY-mini2.0---
11.
 
Canon T6Ymono / mono--mini2.0YY-
12.
 
Canon T6sYstereo / monoY-mini2.0YY-
13.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
14.
 
Sony A7 IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
16.
 
Sony A9Ystereo / monoYYmicro2.0YYY
17.
 
Sony A77Ystereo / monoY-mini2.0---

It is notable that the A77 II 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.

Studio photographers will appreciate that the Sony A77 II (unlike the T3i) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the T3i and the A77 II have been discontinued, but can regularly be found used on ebay. The T3i was replaced by the Canon T4i, while the A77 II does not have a direct successor. Further information on the features and operation of the T3i and A77 II can be found, respectively, in the Canon T3i Manual (free pdf) or the online Sony A77 II Manual.

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Review summary

So how do things add up? Is there a clear favorite between the Canon T3i and the Sony A77 II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.

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Advantages of the Canon EOS Rebel T3i:

  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • More compact: Is smaller (133x100mm vs 143x104mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 77g or 12 percent) and hence easier to carry around.
  • 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 Sony Alpha SLT-A77 II:

  • More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
  • Better image quality: Scores substantially higher (17 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (2.3 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.9 EV of extra DR).
  • Better low-light sensitivity: Can shoot in dim conditions (0.4 stops ISO advantage).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • 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 (0.73x vs 0.53x).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • More detailed LCD: Has a higher resolution rear screen (1229k vs 1040k dots).
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (12 vs 3.7 flaps/sec) to capture the decisive moment.
  • 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.
  • Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
  • More modern: Reflects 3 years and 2 months of technical progress since the T3i launch.

If the number of relative strengths (bullet points above) is taken as a guide, the A77 II is the clear winner of the contest (20 : 5 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 05:20 A77 II

How about other alternatives? Do the specifications of the Canon T3i and the Sony A77 II place the cameras among the top in their class? Find out in the latest Best DSLR Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the T3i and the A77 II in practical situations. 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 why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
Canon T3i3/5o..77/1004.5/54.5/5 Feb 2011 EUR 549ebay.com
2.
 
Sony A77 II4/5....80/1004.5/55/5 May 2014 EUR 1 199ebay.com
3.
 
Canon M3/5+....4/54/5 Jul 2012 EUR 599ebay.com
4.
 
Canon SL14/5+..78/1004/54/5 Mar 2013 EUR 499ebay.com
5.
 
Canon T1i..+ +..74/1004.5/54.5/5 Mar 2009 EUR 699ebay.com
6.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 EUR 649ebay.com
7.
 
Canon T3..80/100..69/1004/54.5/5 Feb 2011 EUR 399ebay.com
8.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 EUR 799ebay.com
9.
 
Canon T53/5+....4/54.5/5 Feb 2014 EUR 399ebay.com
10.
 
Canon T5i......76/1004.5/54.5/5 Mar 2013 EUR 599ebay.com
11.
 
Canon T64/5o4/573/1004/54/5 Mar 2016 EUR 449ebay.com
12.
 
Canon T6s5/5+..77/1004.5/54.5/5 Feb 2015 EUR 749ebay.com
13.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 EUR 1 199ebay.com
14.
 
Sony A7 II5/5+4/582/1004.5/55/5 Nov 2014 EUR 2 099ebay.com
15.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 EUR 3 399ebay.com
16.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 EUR 5 299ebay.com
17.
 
Sony A775/591/100..81/100..5/5 Aug 2011 EUR 1 299ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings are only valid when referring to cameras in the same category and of the same age. 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.

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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 T3i vs Sony A77 II

    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 A77 II
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Sony A mount lenses
    Launch Date February 2011 May 2014
    Launch Price USD 599 USD 1,199
    Sensor Specs Canon T3i Sony A77 II
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 23.5 x 15.6 mm
    Sensor Area 332.27 mm2 366.6 mm2
    Sensor Diagonal 26.8 mm 28.2 mm
    Crop Factor 1.6x 1.5x
    Sensor Resolution 17.9 Megapixels 24 Megapixels
    Image Resolution 5184 x 3456 pixels 6000 x 4000 pixels
    Pixel Pitch 4.31 μm 3.91 μm
    Pixel Density 5.39 MP/cm2 6.55 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/60p Video
    ISO Setting 100 - 6,400 ISO 100 - 25,600 ISO
    ISO Boost 100 - 12,800 ISO 50 - 51,200 ISO
    Image Processor DIGIC 4 BIONZ X
    DXO Sensor Quality (score) 65 82
    DXO Color Depth (bits) 22.1 24.4
    DXO Dynamic Range (EV) 11.5 13.4
    DXO Low Light (ISO) 793 1013
    Screen Specs Canon T3i Sony A77 II
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 95% 100%
    Viewfinder Magnification 0.53x 0.73x
    Viewfinder Resolution 2359k dots
    Top-Level Screen no Top Display Control Panel
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1229k dots
    LCD Attachment Swivel screen Fully flexible screen
    Shooting Specs Canon T3i Sony A77 II
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing Aidno Peaking FeatureFocus Peaking
    Max Shutter Speed (mechanical) 1/4000s 1/8000s
    Continuous Shooting 3.7 shutter flaps/s 12 shutter flaps/s
    Shutter Life Expectancy100 000 actuations150 000 actuations
    Image StabilizationLens stabilization onlyIn-body stabilization
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support no UHS-I
    Connectivity Specs Canon T3i Sony A77 II
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support no Wifi Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Body Specs Canon T3i Sony A77 II
    Environmental Sealingnot weather sealedWeathersealed body
    Battery Type Canon LP-E8 Sony NP-FM500H
    Battery Life (CIPA)440 shots per charge480 shots per charge
    Body Dimensions 133 x 100 x 80 mm
    (5.2 x 3.9 x 3.1 in)
    143 x 104 x 81 mm
    (5.6 x 4.1 x 3.2 in)
    Camera Weight 570 g (20.1 oz) 647 g (22.8 oz)
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    Check A77 II offers at
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