Canon 6D Mark II vs T7i
The Canon EOS 6D Mark II and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were officially introduced, respectively, in June 2017 and February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (6D Mark II) and an APS-C (T7i) sensor. The 6D Mark II has a resolution of 26 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.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 6D Mark II 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.
The side-by-side display below illustrates the physical size and weight of the Canon 6D Mark II 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 size dimensions are rounded to the nearest millimeter.
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 (18 percent) than the Canon 6D Mark II. Moreover, the T7i is markedly lighter (30 percent) than the 6D Mark II. It is worth mentioning in this context that the 6D Mark II 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. A larger imaging sensor (as in the 6D Mark II) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (T7i). 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.
|1.||Canon 6D Mark II||144 mm||111 mm||75 mm||765 g||1200||Y||Jun 2017||1,999|
|2.||Canon T7i||131 mm||100 mm||76 mm||532 g||600||n||Feb 2017||749|
|3.||Canon T8i||131 mm||103 mm||76 mm||515 g||800||n||Feb 2020||749|
|4.||Canon T7||129 mm||101 mm||78 mm||475 g||500||n||Feb 2018||449|
|5.||Canon R||139 mm||98 mm||84 mm||660 g||370||Y||Sep 2018||2,299|
|6.||Canon 77D||131 mm||100 mm||76 mm||540 g||600||n||Feb 2017||899|
|7.||Canon 1D X Mark II||158 mm||168 mm||83 mm||1530 g||1210||Y||Feb 2016||5,999|
|8.||Canon 5D Mark IV||151 mm||116 mm||76 mm||890 g||900||Y||Aug 2016||3,499|
|9.||Canon 80D||139 mm||105 mm||79 mm||730 g||960||Y||Feb 2016||1,199|
|10.||Canon 5DS||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699|
|11.||Canon 5DS R||152 mm||116 mm||76 mm||930 g||700||Y||Feb 2015||3,699|
|12.||Canon T6i||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|13.||Canon 7D II||149 mm||112 mm||78 mm||910 g||670||Y||Sep 2014||1,799|
|14.||Canon T5i||133 mm||100 mm||79 mm||580 g||440||n||Mar 2013||649|
|15.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|16.||Nikon D500||147 mm||115 mm||81 mm||860 g||1240||Y||Jan 2016||1,999|
|17.||Nikon D610||141 mm||113 mm||82 mm||850 g||900||Y||Oct 2013||1,999|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. 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 63 percent) than the 6D Mark 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
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 tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 6D Mark II features a full frame sensor and the Canon T7i an APS-C sensor. The sensor area in the T7i is 61 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 26MP, the 6D Mark II offers a slightly higher resolution than the T7i (24MP), but the 6D Mark II nevertheless has larger individual pixels (pixel pitch of 5.76μm versus 3.72μm for the T7i) due to its larger sensor. Moreover, the 6D Mark II is a somewhat more recent model (by 4 months) than the T7i, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.
The Canon EOS 6D Mark II has a native sensitivity range from ISO 100 to ISO 40000, which can be extended to ISO 50-102400. 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.
For many cameras, data on sensor performance has been reported by DXO Mark. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|1.||Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85|
|5.||Canon R||Full Frame||30.1||6720||4480||4K/30p||24.5||13.5||2742||89|
|7.||Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88|
|8.||Canon 5D Mark IV||Full Frame||30.1||6720||4480||4K/30p||24.8||13.6||2995||91|
|10.||Canon 5DS||Full Frame||50.3||8688||5792||1080/30p||24.7||12.4||2381||87|
|11.||Canon 5DS R||Full Frame||50.3||8688||5792||1080/30p||24.6||12.4||2308||86|
|13.||Canon 7D II||APS-C||20.0||5472||3648||1080/60p||22.4||11.8||1082||70|
|15.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|17.||Nikon D610||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).
Apart from body and sensor, cameras can and do differ across a range of features. The 6D Mark II 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 6D Mark II 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 6D Mark II has a higher magnification (0.72x vs 0.51x), 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 6D Mark II and Canon T7i along with similar information for a selection of comparators.
|1.||Canon 6D Mark II||optical||Y||3.0||1040||swivel||Y||1/4000s||6.5||n||n|
|7.||Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n|
|8.||Canon 5D Mark IV||optical||Y||3.2||1620||fixed||Y||1/8000s||7.0||n||n|
|11.||Canon 5DS R||optical||Y||3.2||1040||fixed||n||1/8000s||5.0||n||n|
|13.||Canon 7D II||optical||Y||3.0||1040||fixed||n||1/8000s||10.0||Y||n|
One feature that is present on the 6D Mark II, 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.
The Canon 6D Mark II 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 6D Mark II 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.
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 6D Mark II and Canon EOS Rebel T7i and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|1.||Canon 6D Mark II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y|
|7.||Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-|
|8.||Canon 5D Mark IV||Y||mono||mono||Y||Y||mini||3.0||Y||Y||-|
|11.||Canon 5DS R||Y||mono||mono||Y||-||mini||3.0||-||-||-|
|13.||Canon 7D II||Y||stereo||mono||Y||Y||mini||3.0||-||-||-|
Travel and landscape photographers will find it useful that the 6D Mark II has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.
The 6D Mark II 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.
So how do things add up? Is there a clear favorite between the Canon 6D Mark II 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 6D Mark II:
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- 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 (0.72x vs 0.51x).
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Longer lasting: Can take more shots (1200 versus 600) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Easier geotagging: Features an internal GPS sensor to log localization data.
- More modern: Is somewhat more recent (announced 4 months after the T7i).
Arguments in favor of the Canon EOS Rebel T7i:
- More compact: Is smaller (131x100mm vs 144x111mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 233g or 30 percent) and is thus easier to take along.
- Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
- More affordable: Was introduced into a lower priced category (63 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in February 2017).
If the count of relative strengths (bullet points above) is taken as a measure, the 6D Mark II is the clear winner of the match-up (12 : 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. 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.
How about other alternatives? Do the specifications of the Canon 6D Mark II 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 6D Mark II or the T7i. 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 hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.
|1.||Canon 6D Mark II||4/5||+||80/100||4.5/5||4/5||Jun 2017||1,999|
|2.||Canon T7i||4.5/5||..||80/100||4.5/5||4/5||Feb 2017||749|
|3.||Canon T8i||4.5/5||+||80/100||4/5||3.5/5||Feb 2020||749|
|4.||Canon T7||..||o||..||3.5/5||3.5/5||Feb 2018||449|
|5.||Canon R||4/5||o||79/100||4.5/5||4/5||Sep 2018||2,299|
|6.||Canon 77D||4.5/5||..||82/100||4.5/5||4/5||Feb 2017||899|
|7.||Canon 1D X Mark II||..||..||89/100||4.5/5||4.5/5||Feb 2016||5,999|
|8.||Canon 5D Mark IV||4.5/5||+ +||87/100||4.5/5||4.5/5||Aug 2016||3,499|
|9.||Canon 80D||4/5||+ +||84/100||4.5/5||4.5/5||Feb 2016||1,199|
|10.||Canon 5DS||..||+||83/100||4.5/5||4.5/5||Feb 2015||3,699|
|11.||Canon 5DS R||5/5||+||83/100||5/5||4.5/5||Feb 2015||3,699|
|12.||Canon T6i||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|13.||Canon 7D II||4.5/5||+||84/100||4/5||4.5/5||Sep 2014||1,799|
|14.||Canon T5i||..||..||76/100||4.5/5||4.5/5||Mar 2013||649|
|15.||Canon 6D||5/5||+ +||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|16.||Nikon D500||5/5||+ +||91/100||4.5/5||5/5||Jan 2016||1,999|
|17.||Nikon D610||4/5||+ +||87/100||4.5/5||4.5/5||Oct 2013||1,999|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 6D Mark II 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 Model||Canon 6D Mark II||Canon T7i|
|Camera Type||Digital single lens reflex||Digital single lens reflex|
|Camera Lens||Canon EF mount lenses||Canon EF mount lenses|
|Launch Date||June 2017||February 2017|
|Launch Price||USD 1,999||USD 749|
|Sensor Specs||Canon 6D Mark II||Canon T7i|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||35.9 x 24.0 mm||22.3 x 14.9 mm|
|Sensor Area||861.6 mm2||332.27 mm2|
|Sensor Diagonal||43.2 mm||26.8 mm|
|Sensor Resolution||26 Megapixels||24 Megapixels|
|Image Resolution||6240 x 4160 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.76 μm||3.72 μm|
|Pixel Density||3.01 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||100 - 40,000 ISO||100 - 25,600 ISO|
|ISO Boost||50 - 102,400 ISO||100 - 51,200 ISO|
|Image Processor||DIGIC 7||DIGIC 7|
|DXO Sensor Quality (score)||85||..|
|DXO Color Depth (bits)||24.4||..|
|DXO Dynamic Range (EV)||11.9||..|
|DXO Low Light (ISO)||2862||..|
|Screen Specs||Canon 6D Mark II||Canon T7i|
|Viewfinder Type||Optical viewfinder||Optical viewfinder|
|Viewfinder Field of View||98%||95%|
|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|
|Shooting Specs||Canon 6D Mark II||Canon T7i|
|Focus System||Phase-detect AF||Phase-detect AF|
|Continuous Shooting||6.5 shutter flaps/s||6 shutter flaps/s|
|Shutter Life Expectancy||100 000 actuations||100 000 actuations|
|Time-Lapse Photography||Intervalometer built-in||no Intervalometer|
|Fill Flash||no On-Board Flash||Built-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 6D Mark II||Canon T7i|
|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||NFC built-in||NFC built-in|
|Bluetooth Support||Bluetooth built-in||Bluetooth built-in|
|Geotagging||GPS built-in||no internal GPS|
|Body Specs||Canon 6D Mark II||Canon T7i|
|Environmental Sealing||Weathersealed body||not weather sealed|
|Battery Life (CIPA)||1200 shots per charge||600 shots per charge|
144 x 111 x 75 mm
(5.7 x 4.4 x 3.0 in)
131 x 100 x 76 mm
(5.2 x 3.9 x 3.0 in)
|Camera Weight||765 g (27.0 oz)||532 g (18.8 oz)|
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