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Canon 70D vs T7i

The Canon EOS 70D and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were revealed to the public, 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 megapixels, whereas the T7i 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 70D versus Canon T7i
Canon 70D Canon T7i
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
20 MP, APS-C Sensor 24 MP, APS-C Sensor
1080/30p Video 1080/60p Video
ISO 100-12,800 (100 - 25,600) ISO 100-25,600 (100 - 51,200)
Optical viewfinder Optical viewfinder
3.0 LCD, 1040k dots 3.0 LCD, 1040k dots
Swivel touchscreen Swivel touchscreen
7 shutter flaps per second 6 shutter flaps per second
Weathersealed bodynot weather sealed
920 shots per battery charge600 shots per battery charge
139 x 104 x 79 mm, 755 g 131 x 100 x 76 mm, 532 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 70D and the Canon EOS Rebel T7i? 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 70D and the Canon T7i 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.

Size Canon 70D vs Canon T7i
Compare 70D versus T7i top
Comparison 70D or 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 compare the optics available 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.

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Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life 1
Weather
Sealing
Camera
Launch 2
Launch
Price (USD)
Street
Price
 
Canon 70D 5.5 in 4.1 in 3.1 in 26.6 oz 920 Y Jul 2013 1,199i
 
Canon T7i 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749i
 
Canon T8i 5.2 in 4.1 in 3.0 in 18.2 oz 800 n Feb 2020 749 i
 
Canon T7 5.1 in 4.0 in 3.1 in 16.8 oz 500 n Feb 2018 449 i
 
Canon 77D 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i
 
Canon 80D 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199i
 
Canon G3 X 4.8 in 3.0 in 4.1 in 25.9 oz 300 Y Jun 2015 999 i
 
Canon T6i 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749i
 
Canon 7D II 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i
 
Canon T5 5.1 in 3.9 in 3.1 in 16.9 oz 500 n Feb 2014 449i
 
Canon T5i 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649i
 
Canon 6D 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099i
 
Canon 60D 5.7 in 4.2 in 3.1 in 26.6 oz 1100 Y Aug 2010 1,399i
 
Canon 7D 5.8 in 4.4 in 2.9 in 30.3 oz 800 Y Sep 2009 1,699i
 
Canon 50D 5.7 in 4.3 in 2.9 in 29.0 oz 800 Y Aug 2008 1,299i
 
Nikon D7100 5.4 in 4.2 in 3.0 in 27.0 oz 950 Y Feb 2013 1,199i
 
Sony RX10 5.1 in 3.5 in 4.0 in 28.7 oz 420 Y Oct 2013 1,299i
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.

Any camera decision will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. 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.

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. 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 are more costly to manufacture and tend to 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 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.

Technology-wise, the T7i uses a more advanced image processing engine (DIGIC 7) than the 70D (DIGIC 5+), with benefits for noise reduction, color accuracy, and processing speed.

Canon 70D and Canon T7i sensor measures

Despite having a slightly smaller sensor, the T7i offers a higher resolution of 24 megapixels, compared with 20 MP of the 70D. 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 3.72μm 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.

The resolution advantage of the Canon T7i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T7i 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 70D are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

The Canon EOS 70D has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Canon EOS Rebel T7i are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 100-51200.

70D versus T7i MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. 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
 
Canon 70D APS-C 20.0 5472 36481080/30p22.511.692668
 
Canon T7i APS-C 24.0 6000 40001080/60p........
 
Canon T8i APS-C 24.0 6000 40004K/24p........
 
Canon T7 APS-C 24.0 6000 40001080/30p........
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.397178
 
Canon 80D APS-C 24.0 6000 40001080/60p23.613.2113579
 
Canon G3 X 1-inch 20.0 5472 36481080/60p21.412.352163
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.091971
 
Canon 7D II APS-C 20.0 5472 36481080/60p22.411.8108270
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463
 
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 3168none21.811.469663
 
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 are not only capable of taking still images, but also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, 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

Beyond 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 viewfinder in the 70D offers a wider field of view (98%) than the one in the T7i (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the 70D has a higher magnification (0.59x vs 0.51x), 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 70D and Canon T7i 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
 
Canon 70Doptical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n
 
Canon T7ioptical n 3.0 1040 swivel Y 1/4000s 6.0 Y n
 
Canon T8ioptical n 3.0 1040 swivel Y 1/4000s 7.5 Y n
 
Canon T7optical n 3.0 920 fixed n 1/4000s 3.0 Y n
 
Canon 77Doptical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n
 
Canon 80Doptical Y 3.0 1040 swivel Y 1/8000s 7.0 Y n
 
Canon G3 Xoptional n 3.2 1620 tilting Y 1/2000s 5.9 Y Y
 
Canon T6ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 7D IIoptical Y 3.0 1040 fixed n 1/8000s 10.0 Y n
 
Canon T5optical n 3.0 460 fixed n 1/4000s 3.0 Y n
 
Canon T5ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
 
Canon 6Doptical Y 3.0 1040 fixed n 1/4000s 4.5 n n
 
Canon 60Doptical Y 3.0 1040 swivel n 1/8000s 5.3 Y n
 
Canon 7Doptical Y 3.0 920 fixed n 1/8000s 8.0 Y n
 
Canon 50Doptical Y 3.0 920 fixed n 1/8000s 6.3 Y n
 
Nikon D7100optical Y 3.2 1229 fixed n 1/8000s 6.0 Y n
 
Sony RX101440 Y 3.0 1229 tilting n 1/3200s 10.0 Y Y

One feature that is present on the 70D, but is missing on the T7i is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

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.

Concerning the storage of imaging data, both the 70D and the T7i write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 70D and Canon EOS Rebel T7i 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
 
Canon 70DYstereomonoY-mini2.0Y--
 
Canon T7iYstereomonoY-mini2.0YYY
 
Canon T8iYstereomonoY-mini2.0Y-Y
 
Canon T7Ymonomono--mini2.0YY-
 
Canon 77DYstereomonoY-mini2.0YYY
 
Canon 80DYstereomonoYYmini2.0YY-
 
Canon G3 XYstereomonoYYmini2.0YY-
 
Canon T6iYstereomonoY-mini2.0YY-
 
Canon 7D IIYstereomonoYYmini3.0---
 
Canon T5Ymonomono--mini2.0---
 
Canon T5iYstereomonoY-mini2.0---
 
Canon 6DYmonomonoY-mini2.0Y--
 
Canon 60DYmonomonoY-mini2.0---
 
Canon 7DYmono-Y-mini2.0---
 
Canon 50DY----mini2.0---
 
Nikon D7100YstereomonoYYmini2.0---
 
Sony RX10YstereomonoYYmicro2.0YY-

Both the 70D and the T7i have been discontinued, but can regularly be found used on eBay. The 70D was replaced by the Canon 80D, while the T7i was followed by the Canon T8i. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.

Review summary

So how do things add up? Is there a clear favorite between the Canon 70D and the Canon T7i? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.


Advantages of the Canon EOS 70D:

  • More complete view: Has a viewfinder with a larger field of view (98% vs 95%).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.59x vs 0.51x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) 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).


Reasons to prefer the Canon EOS Rebel T7i:

  • More detail: Has more megapixels (24 vs 20MP), which boosts linear resolution by 10%.
  • Better jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 5+).
  • 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.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • 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 match-up finishes in a tie (8 points each). 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.

70D 08:08 T7i

How about other alternatives? Do the specifications of the Canon 70D and the Canon T7i 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 technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the 70D and the T7i in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.

Expert reviews

This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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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Review Scores
  Camera
Model
camera
  labs  
dp
review  
ephoto
  zine  
imaging
resource
photography
  blog  
Camera
Launch
Launch
Price (USD)
Street
Price
 
Canon 70D+ +83/1004.5/54.5/55/5 Jul 2013 1,199i
 
Canon T7i..80/1004.5/54/54/5 Feb 2017 749i
 
Canon T8i.......... Feb 2020 749 i
 
Canon T7o..3.5/5..3.5/5 Feb 2018 449 i
 
Canon 77D..82/1004.5/54.5/54/5 Feb 2017 899 i
 
Canon 80D+ +84/1004.5/54.5/54.5/5 Feb 2016 1,199i
 
Canon G3 X+..4.5/53.5/54/5 Jun 2015 999 i
 
Canon T6i..75/1004.5/54.5/54.5/5 Feb 2015 749i
 
Canon 7D II+84/1004/55/54.5/5 Sep 2014 1,799 i
 
Canon T5+..4/54/54.5/5 Feb 2014 449i
 
Canon T5i..76/1004.5/54.5/54.5/5 Mar 2013 649i
 
Canon 6D+ +83/1004.5/54.5/54.5/5 Sep 2012 2,099i
 
Canon 60D+79/1004/55/54.5/5 Aug 2010 1,399i
 
Canon 7D+ +84/1004.5/55/54.5/5 Sep 2009 1,699i
 
Canon 50D+ ++ +4.5/55/54.5/5 Aug 2008 1,299i
 
Nikon D7100+ +85/1004.5/55/54.5/5 Feb 2013 1,199i
 
Sony RX10+80/1004.5/54.5/54.5/5 Oct 2013 1,299i
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. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Canon 70D:
Check Ebay offers
Canon T7i:
Check Ebay offers

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

~

    Specifications: Canon 70D vs Canon T7i

    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 70D Canon T7i
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date July 2013 February 2017
    Launch Price USD 1,199 USD 749
    Sensor Specs Canon 70D Canon T7i
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.5 x 15.0 mm 22.3 x 14.9 mm
    Sensor Area 337.5 mm2 332.27 mm2
    Sensor Diagonal 27 mm 26.8 mm
    Crop Factor 1.6x 1.6x
    Sensor Resolution 20 Megapixels 24 Megapixels
    Image Resolution 5472 x 3648 pixels 6000 x 4000 pixels
    Pixel Pitch 4.11 μm 3.72 μm
    Pixel Density 5.91 MP/cm2 7.22 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video 1080/60p Video
    ISO Setting 100 - 12,800 ISO 100 - 25,600 ISO
    ISO Boost 100 - 25,600 ISO 100 - 51,200 ISO
    Image Processor DIGIC 5+ DIGIC 7
    DXO Sensor Quality (score) 68 ..
    DXO Color Depth (bits) 22.5 ..
    DXO Dynamic Range (EV) 11.6 ..
    DXO Low Light (ISO) 926 ..
    Screen Specs Canon 70D Canon T7i
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 98% 95%
    Viewfinder Magnification 0.59x 0.51x
    Top-Level Screen Control Panel no Top Display
    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 Touchscreen Touchscreen
    Shooting Specs Canon 70D Canon T7i
    Focus System Phase-detect AF Phase-detect AF
    Continuous Shooting 7 shutter flaps/s 6 shutter flaps/s
    Shutter Life Expectancy100 000 actuations100 000 actuations
    Fill Flash Build-in Flash Build-in Flash
    Storage Medium SDXC cards SDXC cards
    Second Storage Option Single card slot Single card slot
    UHS card support UHS-I UHS-I
    Connectivity Specs Canon 70D Canon T7i
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port External MIC port
    Wifi Support Wifi built-in Wifi built-in
    Near-Field Communication no NFC NFC built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Body Specs Canon 70D Canon T7i
    Environmental SealingWeathersealed bodynot weather sealed
    Battery Type LP-E6 LP-E17
    Battery Life (CIPA)920 shots per charge600 shots per charge
    Body Dimensions 139 x 104 x 79 mm
    (5.5 x 4.1 x 3.1 in)
    131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 755 g (26.6 oz) 532 g (18.8 oz)

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