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Canon T3i versus Canon 77D

The Canon EOS Rebel T3i (called Canon 650D in some regions) and the Canon EOS 77D are two digital cameras that were announced, respectively, in February 2011 and February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The T3i has a resolution of 17.9 megapixel, whereas the 77D provides 24 MP. Read on to find out how these two cameras compare with respect to their size, their sensors, their features, and their reception by expert reviewers.

Body comparison: Canon T3i vs Canon 77D

The physical size and weight of the Canon T3i and the Canon 77D are illustrated in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the T3i – represents the basis for the calculations across all the size and weight measures).

Compare Canon T3i vs Canon 77D
T3i versus 77D top view
T3i and 77D rear side

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 77D is somewhat smaller (2 percent) than the Canon T3i. Moreover, the 77D is markedly lighter (5 percent) than the T3i. In this context, it is worth noting that neither the T3i nor the 77D are weather-sealed.

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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics in the Canon EF Lens Catalog.

Concerning battery life, the T3i gets 440 shots out of its LP-E8 battery, while the 77D can take 600 images on a single charge of its LP-E17 power pack.

The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon T3i (⇒ rgt) 5.2 in 3.9 in 3.1 in 20.1 oz 440 no 2011 599discont. check
Canon 77D (⇒ lft) 5.2 in 3.9 in 3.0 in 19.0 oz 600 no 2017 899 latest check
Canon T7 (⇒ lft | rgt) 5.1 in 4.0 in 3.1 in 16.8 oz 500 no 2018 449 latest check
Canon M6 (⇒ lft | rgt) 4.4 in 2.7 in 1.8 in 13.8 oz 295 no 2017 779 latest check
Canon SL2 (⇒ lft | rgt) 4.8 in 3.7 in 2.8 in 16.0 oz 650 no 2017 549 latest check
Canon T7i (⇒ lft | rgt) 5.2 in 3.9 in 3.0 in 18.8 oz 600 no 2017 749 latest check
Canon M5 (⇒ lft | rgt) 4.6 in 3.5 in 2.4 in 15.1 oz 295 no 2016 979 latest check
Canon M10 (⇒ lft | rgt) 4.3 in 2.6 in 1.4 in 10.6 oz 255 no 2015 499discont. check
Canon T5 (⇒ lft | rgt) 5.1 in 3.9 in 3.1 in 16.9 oz 500 no 2014 449discont. check
Canon T5i (⇒ lft | rgt) 5.2 in 3.9 in 3.1 in 20.5 oz 440 no 2013 649discont. check
Canon SL1 (⇒ lft | rgt) 4.6 in 3.6 in 2.7 in 14.4 oz 380 no 2013 549discont. check
Canon M (⇒ lft | rgt) 4.3 in 2.6 in 1.3 in 10.5 oz 230 no 2012 599discont. check
Canon T4i (⇒ lft | rgt) 5.2 in 3.9 in 3.1 in 20.3 oz 440 no 2012 849discont. check
Canon T3 (⇒ lft | rgt) 5.1 in 3.9 in 3.1 in 17.5 oz 700 no 2011 449discont. check
Canon T2i (⇒ lft | rgt) 5.1 in 3.9 in 2.4 in 18.7 oz 440 no 2010 699discont. check
Canon T1i (⇒ lft | rgt) 5.1 in 3.9 in 2.4 in 18.3 oz 400 no 2009 799discont. check

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 33 percent) than the 77D, 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: Canon T3i vs Canon 77D

The imaging sensor is at the core of digital cameras and its size is one of the main determining factors of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color depth than smaller pixels 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 and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon T3i and Canon 77D sensor measures

While the two cameras under review share the same sensor size, the 77D offers a higher resolution of 24 megapixel, compared with 17.9 MP of the T3i. This megapixel advantage translates into a 16 percent gain in linear resolution. On the other hand, these sensor specs imply that the 77D has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 4.31μm for the T3i). However, it should be noted that the 77D is much more recent (by 6 years) than the T3i, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.

T3i versus 77D MP

Consistent information on actual sensor performance is available from DXO Mark for most 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"). Of the two cameras under consideration, the 77D offers substantially better image quality than the T3i (overall score 13 points higher). The advantage is based on 1.5 bits higher color depth, 1.8 EV in additional dynamic range, and 0.3 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.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon T3i (⇒ rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.5 793 65
Canon 77D (⇒ lft) APS-C 24.0 6000 4000 1080/60p 23.6 13.3 971 78
Canon T7 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p .. .. .. ..
Canon M6 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon SL2 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.4 1041 79
Canon T7i (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon M5 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.4 12.4 1262 77
Canon M10 (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.2 11.4 753 65
Canon T5 (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.9 11.3 724 63
Canon T5i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 681 61
Canon SL1 (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.8 11.3 843 63
Canon M (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.2 827 65
Canon T4i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 722 62
Canon T3 (⇒ lft | rgt) APS-C 12.2 4272 2848 720/30p 21.9 11.0 755 62
Canon T2i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.5 784 66
Canon T1i (⇒ lft | rgt) APS-C 15.1 4752 3168 1080/20p 21.7 11.5 663 63

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 77D provides a faster frame rate than the T3i. It can shoot movie footage at 1080/60p, while the T3i is limited to 1080/30p.

Feature comparison: Canon T3i vs Canon 77D

Apart from body and sensor, cameras can and do differ across a variety of features. The T3i and the 77D are similar in the sense that both have an optical viewfinder. The latter is useful for getting a clear image for framing even in brightly lit environments. The adjacent table lists some of the other core features of the Canon T3i and Canon 77D along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Canon T3i (⇒ rgt) optical no 3.0 1040 swivel no 4000 3.7 13 no
Canon 77D (⇒ lft) optical YES 3.0 1040 swivel YES 4000 6.0 12 no
Canon T7 (⇒ lft | rgt) optical no 3.0 920 fixed no 4000 3.0 9.2 no
Canon M6 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 9.0 5 no
Canon SL2 (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 9.8 no
Canon T7i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 6.0 12 no
Canon M5 (⇒ lft | rgt) 2360 no 3.2 1620 tilting YES 4000 9.0 5 no
Canon M10 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 4.6 5 no
Canon T5 (⇒ lft | rgt) optical no 3.0 460 fixed no 4000 3.0 9.2 no
Canon T5i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 13 no
Canon SL1 (⇒ lft | rgt) optical no 3.0 1040 fixed YES 4000 4.9 9.4 no
Canon M (⇒ lft | rgt) no no 3.0 1040 fixed YES 4000 4.3 no no
Canon T4i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 13 no
Canon T3 (⇒ lft | rgt) optical no 2.7 230 fixed no 4000 3.0 9.2 no
Canon T2i (⇒ lft | rgt) optical no 3.0 1040 fixed no 4000 3.7 13 no
Canon T1i (⇒ lft | rgt) optical no 3.0 920 fixed no 4000 3.4 13 no

The 77D is a current model that online retailers, such as amazon, will have in stock. In contrast, the T3i has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the T3i was succeeded by the Canon T4i.

Review summary: Canon T3i vs Canon 77D

So what conclusions can be drawn? Is the Canon T3i better than the Canon 77D or vice versa? The listing below highlights the relative strengths of the two models.


Advantages of the Canon EOS Rebel T3i:

  • More affordable: Was introduced into a lower priced category (33 percent cheaper at launch).
  • More heavily discounted: Has been available for much longer (launched in February 2011).

Arguments in favor of the Canon EOS 77D:

  • More detail: Has more megapixels (24 vs 17.9MP), which boosts linear resolution by 16%.
  • Better image quality: Scores substantially higher (13 points) in the DXO overall evaluation.
  • Richer colors: Generates noticeably more natural colors (1.5 bits more color depth).
  • More dynamic range: Captures a broader range of light and dark details (1.8 EV of extra DR).
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • Easier setting verification: Has a control panel on top to check shooting parameters.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • Faster burst: Shoots at higher frequency (6 vs 3.7 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (600 versus 440) out of a single battery charge.
  • More modern: Reflects 6 years of technical progress since the T3i launch.

If the number of relative strengths (bullet points above) is taken as a guide, the 77D is the clear winner of the contest (10 : 2 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision.

T3i 02:10 77D

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the T3i and the 77D 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. This is why expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed by clicking on the site logo in the table header.

Review scores
Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon T3i (⇒ rgt) reviewed 77/100 Silver 4.5/5 5/5 4.5/5 2011 599discont. check
Canon 77D (⇒ lft) .. 82/100 Silver 4.5/5 4.5/5 4/5 2017 899 latest check
Canon T7 (⇒ lft | rgt) reviewed .. 3.5/5 .. 3.5/5 2018 449 latest check
Canon M6 (⇒ lft | rgt) - 80/100 Silver 4/5 4.5/5 4/5 2017 779 latest check
Canon SL2 (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 4.5/5 4.5/5 2017 549 latest check
Canon T7i (⇒ lft | rgt) .. 80/100 Gold 4.5/5 4/5 4/5 2017 749 latest check
Canon M5 (⇒ lft | rgt) Rec 82/100 Silver 4/5 4.5/5 4/5 2016 979 latest check
Canon M10 (⇒ lft | rgt) - - - reviewed 4/5 2015 499discont. check
Canon T5 (⇒ lft | rgt) 4/5 - 4/5 4/5 4.5/5 2014 449discont. check
Canon T5i (⇒ lft | rgt) - 76/100 Silver 4.5/5 4.5/5 4.5/5 2013 649discont. check
Canon SL1 (⇒ lft | rgt) Rec 78/100 Gold 4/5 4/5 4/5 2013 549discont. check
Canon M (⇒ lft | rgt) Rec - 4/5 3.5/5 4/5 2012 599discont. check
Canon T4i (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 4.5/5 4.5/5 2012 849discont. check
Canon T3 (⇒ lft | rgt) 80/100 69/100 4/5 4/5 4.5/5 2011 449discont. check
Canon T2i (⇒ lft | rgt) 88/100 HiRec 77/100 Gold 4/5 5/5 4.5/5 2010 699discont. check
Canon T1i (⇒ lft | rgt) 88/100 HiRec 74/100 HiRec 4.5/5 5/5 4.5/5 2009 799discont. check

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, please note that some of the review sites have changed their methodology and reporting over time.

Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored. If you do not see the camera that you are looking for, kindly get in touch, and I will try to add information on that model to the database.

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