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Canon 70D versus Canon T7i

The Canon EOS 70D and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were officially introduced, respectively, in July 2013 and February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 70D has a resolution of 20 megapixel, whereas the T7i 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 70D vs Canon T7i

An illustration of the physical size and weight of the Canon 70D and the Canon T7i is provided in the side-by-side display below. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter. You can also toggle the display 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 70D – represents the basis for the calculations across all the size and weight measures).

Snapsort Canon 70D vs Canon T7i
Compare 70D versus T7i top
Compare 70D and T7i rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon T7i is notably smaller (9 percent) than the Canon 70D. Moreover, the T7i is markedly lighter (30 percent) than the 70D. It is worth mentioning in this context that the 70D is splash and dust resistant, while the T7i 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. 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 70D gets 920 shots out of its LP-E6 battery, while the T7i 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
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Canon 70D» 5.5 in 4.1 in 3.1 in 26.6 oz 920 Y Jul 2013 1,199- i
Canon T7i« 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749 i i
Canon T7« » 5.1 in 4.0 in 3.1 in 16.8 oz 500 n Feb 2018 449 i i
Canon 77D« » 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i i
Canon M6« » 4.4 in 2.7 in 1.8 in 13.8 oz 295 n Feb 2017 779 i i
Canon SL2« » 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549 i i
Canon 80D« » 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199 i i
Canon G3 X« » 4.8 in 3.0 in 4.1 in 25.9 oz 300 Y Jun 2015 999 i i
Canon 7D II« » 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i i
Canon T5i« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649- i
Canon 6D« » 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099- i
Canon 60D« » 5.7 in 4.2 in 3.1 in 26.6 oz 1100 Y Aug 2010 1,399- i
Canon 7D« » 5.8 in 4.4 in 2.9 in 30.3 oz 800 Y Sep 2009 1,699- i
Canon 50D« » 5.7 in 4.3 in 2.9 in 29.0 oz 800 Y Aug 2008 1,299- i
Nikon D7100« » 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199- i
Sony RX10« » 5.1 in 3.5 in 4.0 in 28.7 oz 420 Y Oct 2013 1,299- i

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 T7i was launched at a markedly lower price (by 38 percent) than the 70D, 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 70D vs Canon T7i

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. 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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the T7i is 2 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 70D and Canon T7i sensor measures

Despite having a slightly smaller sensor, the T7i offers a higher resolution of 24 megapixel, compared with 20 MP of the 70D. This megapixel advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 4.11μm for the 70D). However, it should be noted that the T7i is much more recent (by 3 years and 7 months) than the 70D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

70D versus T7i 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"). 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
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 70D» APS-C 20.0 5472 36481080/30p22.511.692668
Canon T7i« APS-C 24.0 6000 40001080/60p----
Canon T7« » APS-C 24.0 6000 40001080/30p----
Canon 77D« » APS-C 24.0 6000 40001080/60p23.613.397178
Canon M6« » APS-C 24.0 6000 40001080/60p----
Canon SL2« » APS-C 24.0 6000 40001080/60p23.613.4104179
Canon 80D« » APS-C 24.0 6000 40001080/60p23.613.2113579
Canon G3 X« » 1-inch 20.0 5472 36481080/60p21.412.352163
Canon 7D II« » APS-C 20.0 5472 36481080/60p22.411.8108270
Canon T5i« » APS-C 17.9 5184 34561080/30p21.711.268161
Canon 6D« » Full Frame 20.0 5472 36481080/30p23.812.1234082
Canon 60D« » APS-C 17.9 5184 34561080/30p22.211.581366
Canon 7D« » APS-C 17.9 5184 34561080/30p22.011.785466
Canon 50D« » APS-C 15.1 4752 3168-21.811.469663
Nikon D7100« » APS-C 24.0 6000 40001080/60p24.213.7125683
Sony RX10« » 1-inch 20.0 5472 36481080/60p22.912.647469

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the T7i provides a faster frame rate than the 70D. It can shoot movie footage at 1080/60p, while the 70D is limited to 1080/30p.

 

Feature comparison: Canon 70D vs Canon T7i

Apart from body and sensor, cameras can and do differ across a range of features. The 70D and the T7i 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 table below summarizes some of the other core capabilities of the Canon 70D and Canon T7i in connection with corresponding information for a sample of similar cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.

Core Features
  Camera Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Canon 70D»optical Y 3.0 1040 swivel Y 8000 7.0 Y n
Canon T7i«optical n 3.0 1040 swivel Y 4000 6.0 Y n
Canon T7« »optical n 3.0 920 fixed n 4000 3.0 Y n
Canon 77D« »optical Y 3.0 1040 swivel Y 4000 6.0 Y n
Canon M6« »- n 3.0 1040 tilting Y 4000 9.0 Y n
Canon SL2« »optical n 3.0 1040 swivel Y 4000 5.0 Y n
Canon 80D« »optical Y 3.0 1040 swivel Y 8000 7.0 Y n
Canon G3 X« »- n 3.2 1620 tilting Y 2000 5.9 Y Y
Canon 7D II« »optical Y 3.0 1040 fixed n 8000 10.0 Y n
Canon T5i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n
Canon 6D« »optical Y 3.0 1040 fixed n 4000 4.5 n n
Canon 60D« »optical Y 3.0 1040 swivel n 8000 5.3 Y n
Canon 7D« »optical Y 3.0 920 fixed n 8000 8.0 Y n
Canon 50D« »optical Y 3.0 920 fixed n 8000 6.3 Y n
Nikon D7100« »optical Y 3.2 1229 fixed n 8000 6.0 Y n
Sony RX10« »1440 Y 3.0 1229 tilting n 3200 10.0 Y Y

The T7i is a current model that online retailers, such as amazon, will have in stock. In contrast, the 70D has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 70D was succeeded by the Canon 80D.

Review summary: Canon 70D vs Canon T7i

So what conclusions can be drawn? Which of the two cameras – the Canon 70D or the Canon T7i – has the upper hand? A synthesis of the relative strong points of each of the models is listed below.


Reasons to prefer the Canon EOS 70D:

  • Easier setting verification: Has an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (7 vs 6 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (920 versus 600) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More heavily discounted: Has been available for much longer (launched in July 2013).


Advantages of the Canon EOS Rebel T7i:

  • More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
  • Better video: Provides higher movie framerates (1080/60p versus 1080/30p).
  • Less heavy: Has a lower weight (by 223g or 30 percent) and is thus easier to take along.
  • More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
  • More modern: Reflects 3 years and 7 months of technical progress since the 70D launch.

If the count of relative strengths (bullet points above) is taken as a measure, the 70D comes out slightly ahead of the T7i (6 : 5 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.

70D 06:05 T7i

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 handling experience and imaging performance when actually working with the 70D or the T7i. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is where reviews by experts come in. 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
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Canon 70D»HiRec83/1004.5/54.5/55/5 Jul 2013 1,199- i
Canon T7i«-80/1004.5/54/54/5 Feb 2017 749 i i
Canon T7« »rev-3.5/5-3.5/5 Feb 2018 449 i i
Canon 77D« »-82/1004.5/54.5/54/5 Feb 2017 899 i i
Canon M6« »-80/1004/54.5/54/5 Feb 2017 779 i i
Canon SL2« »HiRec78/1004.5/54.5/54.5/5 Jun 2017 549 i i
Canon 80D« »HiRec84/1004.5/54.5/54.5/5 Feb 2016 1,199 i i
Canon G3 X« »Rec-4.5/53.5/54/5 Jun 2015 999 i i
Canon 7D II« »Rec84/1004/55/54.5/5 Sep 2014 1,799 i i
Canon T5i« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i
Canon 6D« »HiRec83/1004.5/54.5/54.5/5 Sep 2012 2,099- i
Canon 60D« »Rec79/1004/55/54.5/5 Aug 2010 1,399- i
Canon 7D« »HiRec84/1004.5/55/54.5/5 Sep 2009 1,699- i
Canon 50D« »HiRecHiRec4.5/55/54.5/5 Aug 2008 1,299- i
Nikon D7100« »HiRec85/1004.5/55/54.5/5 Feb 2013 1,199- i
Sony RX10« »Rec80/1004.5/54.5/54.5/5 Oct 2013 1,299- i

The above review scores should be interpreted with care, though. The ratings are only valid when refering 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

 

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. If the camera you are interested in is not available, kindly get in touch, and I will try to add information on that model to the database.

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