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Canon 850D vs T7i

The Canon EOS 850D (called Canon T8i in some regions) and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were revealed to the public, respectively, in February 2020 and February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixels.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Canon 850D
versus
Canon T7i
Canon 850D Canon T7i
Digital single lens reflex Digital single lens reflex
Canon EF mount lenses Canon EF mount lenses
24 MP, APS-C Sensor 24 MP, APS-C Sensor
4K/24p Video 1080/60p Video
ISO 100-25,600 (100 - 51,200) 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
7.5 shutter flaps per second 6 shutter flaps per second
800 shots per battery charge600 shots per battery charge
131 x 103 x 76 mm, 515 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 850D 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 side-by-side display below illustrates the physical size and weight of the Canon 850D and the Canon T7i. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

Size Canon 850D vs Canon T7i
Compare 850D versus T7i top
Comparison 850D 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 somewhat smaller (3 percent) than the Canon 850D. However, the T7i is slightly heavier (3 percent) than the 850D. In this context, it is worth noting that neither the 850D nor the T7i 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 compare the optics available in the Canon EF Lens Catalog.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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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 850D 131 mm 103 mm 76 mm 515 g 800 n Feb 2020 749 i
2.
 
Canon T7i 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 749 i
3.
 
Canon T8i 131 mm 103 mm 76 mm 515 g 800 n Feb 2020 749 i
4.
 
Canon RP 133 mm 85 mm 70 mm 485 g 250 n Feb 2019 1,299 i
5.
 
Canon 250D 122 mm 93 mm 70 mm 449 g 1070 n Apr 2019 599 i
6.
 
Canon G5 X Mark II 111 mm 61 mm 46 mm 340 g 230 n Jul 2019 899 i
7.
 
Canon G7 X Mark III 105 mm 61 mm 41 mm 304 g 235 n Jul 2019 749 i
8.
 
Canon 2000D 129 mm 101 mm 78 mm 475 g 500 n Feb 2018 449 i
9.
 
Canon T7 129 mm 101 mm 78 mm 475 g 500 n Feb 2018 449 i
10.
 
Canon 77D 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 899 i
11.
 
Canon 200D 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549 i
12.
 
Canon 800D 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 749 i
13.
 
Canon 750D 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749 i
14.
 
Canon 760D 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649 i
15.
 
Canon T6i 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749 i
16.
 
Canon T5i 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 649 i
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 retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The two cameras under review were launched at the same price and fall into the same 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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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 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. 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 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 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.

In terms of chip-set technology, the 850D uses a more advanced image processing engine (DIGIC 8) than the T7i (DIGIC 7), with benefits for noise reduction, color accuracy, and processing speed.

Canon 850D and Canon T7i sensor measures

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 24 megapixels. This similarity in sensor specs implies that both the 850D and the T7i have the same pixel density, as well as the same pixel size. It should, however, be noted that the 850D is much more recent (by 2 years and 11 months) than the T7i, and its sensor will have benefitted from technological advances during this time.

The Canon EOS 850D has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The Canon EOS Rebel T7i offers exactly the same ISO settings.

850D 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
1.
 
Canon 850D APS-C 24.0 6000 40004K/24p...... ..
2.
 
Canon T7i APS-C 24.0 6000 40001080/60p...... ..
3.
 
Canon T8i APS-C 24.0 6000 40004K/24p...... ..
4.
 
Canon RP Full Frame 26.2 6240 41604K/30p...... ..
5.
 
Canon 250D APS-C 24.0 6000 40004K/25p...... ..
6.
 
Canon G5 X Mark II 1-inch 20.0 5472 36484K/30p...... ..
7.
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p...... ..
8.
 
Canon 2000D APS-C 24.0 6000 40001080/30p22.611.91009 71
9.
 
Canon T7 APS-C 24.0 6000 40001080/30p...... ..
10.
 
Canon 77D APS-C 24.0 6000 40001080/60p23.613.3971 78
11.
 
Canon 200D APS-C 24.0 6000 40001080/60p23.613.41041 79
12.
 
Canon 800D APS-C 24.0 6000 40001080/60p...... ..
13.
 
Canon 750D APS-C 24.0 6000 40001080/30p22.712.0919 71
14.
 
Canon 760D APS-C 24.0 6000 40001080/30p22.612.0915 70
15.
 
Canon T6i APS-C 24.0 6000 40001080/30p22.712.0919 71
16.
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.2681 61

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 850D provides a higher video resolution than the T7i. It can shoot video footage at 4K/24p, while the T7i is limited to 1080/60p.

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Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The 850D 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 viewfinders of both cameras offer the same field of view (95%), as well as the same magnification (0.51x). The following table reports on some other key feature differences and similarities of the Canon 850D, the Canon T7i, and comparable 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 850Doptical n 3.0 1040 swivel Y 1/4000s 7.5 Y n
2.
 
Canon T7ioptical n 3.0 1040 swivel Y 1/4000s 6.0 Y n
3.
 
Canon T8ioptical n 3.0 1040 swivel Y 1/4000s 7.5 Y n
4.
 
Canon RP2360 n 3.0 1040 swivel Y 1/4000s 5.0 n n
5.
 
Canon 250Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
6.
 
Canon G5 X Mark II2360 n 3.0 1040 tilting Y 1/2000s 30 Y Y
7.
 
Canon G7 X Mark IIInone n 3.0 1040 tilting Y 1/2000s 30 Y Y
8.
 
Canon 2000Doptical n 3.0 920 fixed n 1/4000s 3.0 Y n
9.
 
Canon T7optical n 3.0 920 fixed n 1/4000s 3.0 Y n
10.
 
Canon 77Doptical Y 3.0 1040 swivel Y 1/4000s 6.0 Y n
11.
 
Canon 200Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
12.
 
Canon 800Doptical n 3.0 1040 swivel Y 1/4000s 6.0 Y n
13.
 
Canon 750Doptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
14.
 
Canon 760Doptical Y 3.0 1040 swivel Y 1/4000s 5.0 Y n
15.
 
Canon T6ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
16.
 
Canon T5ioptical n 3.0 1040 swivel Y 1/4000s 5.0 Y n
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 Canon 850D has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the 850D 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.

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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 850D 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
1.
 
Canon 850DYstereomonoY-mini2.0Y-Y
2.
 
Canon T7iYstereomonoY-mini2.0YYY
3.
 
Canon T8iYstereomonoY-mini2.0Y-Y
4.
 
Canon RPYstereomonoYYmicro2.0Y-Y
5.
 
Canon 250DYstereomonoY-mini2.0Y-Y
6.
 
Canon G5 X Mark II-stereomono--micro3.1Y-Y
7.
 
Canon G7 X Mark III-stereomonoY-micro3.1Y-Y
8.
 
Canon 2000DYmonomono--mini2.0YY-
9.
 
Canon T7Ymonomono--mini2.0YY-
10.
 
Canon 77DYstereomonoY-mini2.0YYY
11.
 
Canon 200DYstereomonoY-mini2.0YYY
12.
 
Canon 800DYstereomonoY-mini2.0YYY
13.
 
Canon 750DYstereomonoY-mini2.0YY-
14.
 
Canon 760DYstereomonoY-mini2.0YY-
15.
 
Canon T6iYstereomonoY-mini2.0YY-
16.
 
Canon T5iYstereomonoY-mini2.0---

The 850D is a recent model that features in the current product line-up of Canon. In contrast, the T7i has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the T7i was succeeded 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.

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Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon 850D or the Canon T7i – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.


Reasons to prefer the Canon EOS 850D:

  • Better jpgs: Has a more modern image processing engine (DIGIC 8 vs DIGIC 7).
  • Better video: Provides higher definition movie capture (4K/24p vs 1080/60p).
  • Faster burst: Shoots at higher frequency (7.5 vs 6 flaps/sec) to capture the decisive moment.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • Longer lasting: Can take more shots (800 versus 600) on a single battery charge.
  • More modern: Reflects 2 years and 11 months of technical progress since the T7i launch.


Arguments in favor of the Canon EOS Rebel T7i:

  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • More heavily discounted: Has been around for much longer (launched in February 2017).

If the count of individual advantages (bullet points above) is taken as a guide, the 850D is the clear winner of the match-up (6 : 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. 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.

850D 06:02 T7i

How about other alternatives? Do the specifications of the Canon 850D 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the 850D or the T7i perform in practice. 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 why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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 850D4/5+80/1004/53.5/5 Feb 2020 749 i
2.
 
Canon T7i4.5/5..80/1004.5/54/5 Feb 2017 749 i
3.
 
Canon T8i4.5/5+80/1004/53.5/5 Feb 2020 749 i
4.
 
Canon RP4/5+..4.5/54/5 Feb 2019 1,299 i
5.
 
Canon 250D..o79/1004/54/5 Apr 2019 599 i
6.
 
Canon G5 X Mark II4/5+82/100..4/5 Jul 2019 899 i
7.
 
Canon G7 X Mark III..+ +81/1004/5.. Jul 2019 749 i
8.
 
Canon 2000D..o..3.5/53.5/5 Feb 2018 449 i
9.
 
Canon T7..o..3.5/53.5/5 Feb 2018 449 i
10.
 
Canon 77D4.5/5..82/1004.5/54/5 Feb 2017 899 i
11.
 
Canon 200D4/5+ +78/1004.5/54.5/5 Jun 2017 549 i
12.
 
Canon 800D4.5/5..80/1004.5/54/5 Feb 2017 749 i
13.
 
Canon 750D5/5..75/1004.5/54.5/5 Feb 2015 749 i
14.
 
Canon 760D5/5+77/1004.5/54.5/5 Feb 2015 649 i
15.
 
Canon T6i5/5..75/1004.5/54.5/5 Feb 2015 749 i
16.
 
Canon T5i....76/1004.5/54.5/5 Mar 2013 649 i
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. A score, therefore, has to be seen in close connection to the price and market introduction time 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, please note that some of the review sites have changed their methodology and reporting over time.

Canon 850D:
Check Amazon price
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.

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    Specifications: Canon 850D 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 850D Canon T7i
    Camera Type Digital single lens reflex Digital single lens reflex
    Camera Lens Canon EF mount lenses Canon EF mount lenses
    Launch Date February 2020 February 2017
    Launch Price USD 749 USD 749
    Sensor Specs Canon 850D Canon T7i
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 22.3 x 14.9 mm
    Sensor Area 332.27 mm2 332.27 mm2
    Sensor Diagonal 26.8 mm 26.8 mm
    Crop Factor 1.6x 1.6x
    Sensor Resolution 24 Megapixels 24 Megapixels
    Image Resolution 6000 x 4000 pixels 6000 x 4000 pixels
    Pixel Pitch 3.72 μm 3.72 μm
    Pixel Density 7.22 MP/cm2 7.22 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 4K/24p Video 1080/60p Video
    ISO Setting 100 - 25,600 ISO 100 - 25,600 ISO
    ISO Boost 100 - 51,200 ISO 100 - 51,200 ISO
    Image Processor DIGIC 8 DIGIC 7
    Screen Specs Canon 850D Canon T7i
    Viewfinder Type Optical viewfinder Optical viewfinder
    Viewfinder Field of View 95% 95%
    Viewfinder Magnification 0.51x 0.51x
    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 850D Canon T7i
    Focus System Phase-detect AF Phase-detect AF
    Manual Focusing AidFocus Peakingno Peaking Feature
    Continuous Shooting 7.5 shutter flaps/s 6 shutter flaps/s
    Shutter Life Expectancy100 000 actuations100 000 actuations
    Time-Lapse PhotographyIntervalometer built-inno Intervalometer
    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 850D 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 Bluetooth built-in Bluetooth built-in
    Body Specs Canon 850D Canon T7i
    Battery Type LP-E17 LP-E17
    Battery Life (CIPA)800 shots per charge600 shots per charge
    Body Dimensions 131 x 103 x 76 mm
    (5.2 x 4.1 x 3.0 in)
    131 x 100 x 76 mm
    (5.2 x 3.9 x 3.0 in)
    Camera Weight 515 g (18.2 oz) 532 g (18.8 oz)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

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