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Canon SL2 versus Canon 6D Mark II

The Canon EOS Rebel SL2 (called Canon 200D in some regions) and the Canon EOS 6D Mark II are two digital cameras that were announced in June 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-C (SL2) and a full frame (6D Mark II) sensor. The SL2 has a resolution of 24 megapixel, whereas the 6D Mark II provides 26 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 SL2 vs Canon 6D Mark II

An illustration of the physical size and weight of the Canon SL2 and the Canon 6D Mark II is provided in the side-by-side display below. 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 measures are rounded to the nearest millimeter. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the SL2 – represents 100 percent across all the size and weight measures).

Compare Canon SL2 vs Canon 6D Mark II
Compare SL2 versus 6D Mark II top
Compare SL2 and 6D Mark II rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 6D Mark II is notably larger (41 percent) than the Canon SL2. Moreover, the 6D Mark II is substantially heavier (69 percent) than the SL2. It is noteworthy in this context that the 6D Mark II is splash and dust-proof, while the SL2 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 (SL2). You can find a comprehensive overview of suitable optics in the Canon EF Lens Catalog.

Concerning battery life, the SL2 gets 650 shots out of its LP-E17 battery, while the 6D Mark II can take 1200 images on a single charge of its LP-E6N power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.

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)
Camera
Model
Canon SL2» 4.8 in 3.7 in 2.8 in 16.0 oz 650 n Jun 2017 549 i i Canon SL2
Canon 6D Mark II« 5.7 in 4.4 in 3.0 in 27.0 oz 1200 Y Jun 2017 1,999 i i Canon 6D Mark II
Canon M50« » 4.6 in 3.5 in 2.3 in 13.8 oz 235 n Feb 2018 779 i i Canon M50
Canon T7« » 5.1 in 4.0 in 3.1 in 16.8 oz 500 n Feb 2018 449 i i Canon T7
Canon 77D« » 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i i Canon 77D
Canon G9 X Mark II« » 3.9 in 2.3 in 1.2 in 7.3 oz 235 n Jan 2017 529 i i Canon G9 X Mark II
Canon M6« » 4.4 in 2.7 in 1.8 in 13.8 oz 295 n Feb 2017 779 i i Canon M6
Canon M100« » 4.3 in 2.6 in 1.4 in 10.7 oz 295 n Aug 2017 499 i i Canon M100
Canon T7i« » 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749 i i Canon T7i
Canon 5D Mark IV« » 5.9 in 4.6 in 3.0 in 31.4 oz 900 Y Aug 2016 3,499 i i Canon 5D Mark IV
Canon 80D« » 5.5 in 4.1 in 3.1 in 25.8 oz 960 Y Feb 2016 1,199 i i Canon 80D
Canon M5« » 4.6 in 3.5 in 2.4 in 15.1 oz 295 n Sep 2016 979 i i Canon M5
Canon SL1« » 4.6 in 3.6 in 2.7 in 14.4 oz 380 n Mar 2013 549- i Canon SL1
Canon 6D« » 5.7 in 4.4 in 2.8 in 27.2 oz 1090 Y Sep 2012 2,099- i Canon 6D
Nikon D3400« » 4.9 in 3.9 in 3.0 in 15.7 oz 1200 n Aug 2016 499- i Nikon D3400
Nikon D750« » 5.6 in 4.4 in 3.1 in 26.5 oz 1230 Y Sep 2014 2,299 i i Nikon D750
Nikon D610« » 5.6 in 4.4 in 3.2 in 30.0 oz 900 Y Oct 2013 1,999 i i Nikon D610

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 SL2 was launched at a markedly lower price (by 73 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.

 

Sensor comparison: Canon SL2 vs Canon 6D Mark II

The size of the imaging sensor is a crucial determinant 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.

Of the two cameras under consideration, the Canon SL2 features an APS-C sensor and the Canon 6D Mark II a full frame sensor. The sensor area in the 6D Mark II is 160 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon SL2 and Canon 6D Mark II sensor measures

With 26MP, the 6D Mark II offers a higher resolution than the SL2 (24MP), but the 6D Mark II nevertheless has larger individual pixels (pixel pitch of 5.76μm versus 3.72μm for the SL2) due to its larger sensor. It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation.

SL2 versus 6D Mark II MP

Consistent information on actual sensor performance is available from DXO Mark for many 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 6D Mark II has a markedly higher DXO score than the SL2 (overall score 6 points higher), which will translate into better image quality. The advantage is based on 0.8 bits higher color depth, 1.5 EV of lower dynamic range, and 1.5 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
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Canon SL2» APS-C 24.0 6000 40001080/60p23.613.4104179Canon SL2
Canon 6D Mark II« Full Frame 26.0 6240 41601080/60p24.411.9286285Canon 6D Mark II
Canon M50« » APS-C 24.0 6000 40004K/24p----Canon M50
Canon T7« » APS-C 24.0 6000 40001080/30p----Canon T7
Canon 77D« » APS-C 24.0 6000 40001080/60p23.613.397178Canon 77D
Canon G9 X Mark II« » 1-inch 20.0 5472 36481080/60p21.912.552265Canon G9 X Mark II
Canon M6« » APS-C 24.0 6000 40001080/60p----Canon M6
Canon M100« » APS-C 24.0 6000 40001080/60p23.512.9127278Canon M100
Canon T7i« » APS-C 24.0 6000 40001080/60p----Canon T7i
Canon 5D Mark IV« » Full Frame 30.1 6720 44804K/30p24.813.6299591Canon 5D Mark IV
Canon 80D« » APS-C 24.0 6000 40001080/60p23.613.2113579Canon 80D
Canon M5« » APS-C 24.0 6000 40001080/60p23.412.4126277Canon M5
Canon SL1« » APS-C 17.9 5184 34561080/30p21.811.384363Canon SL1
Canon 6D« » Full Frame 20.0 5472 36481080/30p23.812.1234082Canon 6D
Nikon D3400« » APS-C 24.0 6000 40001080/60p24.813.9119286Nikon D3400
Nikon D750« » Full Frame 24.2 6016 40161080/60p24.814.5295693Nikon D750
Nikon D610« » Full Frame 24.2 6016 40161080/30p25.114.4292594Nikon D610

Many modern cameras cannot only take still pictures, but also record videos. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, and both provide the same movie specifications (1080/60p).

 

Feature comparison: Canon SL2 vs Canon 6D Mark II

Apart from body and sensor, cameras can and do differ across a range of features. The SL2 and the 6D Mark II 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 SL2 and Canon 6D Mark II in connection with corresponding information for a sample of similar cameras. If you need more detail on the specs, you can find comprehensive listings, for example, in the dpreview camera hub.

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)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec)
Build-in
Flash
(yes/no)
Build-in
Image
Stab
Camera
Model
Canon SL2»optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon SL2
Canon 6D Mark II«optical Y 3.0 1040 swivel Y 4000 6.5 n n Canon 6D Mark II
Canon M50« »2360 n 3.0 1040 swivel Y 4000 10.0 Y n Canon M50
Canon T7« »optical n 3.0 920 fixed n 4000 3.0 Y n Canon T7
Canon 77D« »optical Y 3.0 1040 swivel Y 4000 6.0 Y n Canon 77D
Canon G9 X Mark II« »- n 3.0 1040 fixed Y 2000 8.2 Y Y Canon G9 X Mark II
Canon M6« »- n 3.0 1040 tilting Y 4000 9.0 Y n Canon M6
Canon M100« »- n 3.0 1040 tilting Y 4000 6.1 Y n Canon M100
Canon T7i« »optical n 3.0 1040 swivel Y 4000 6.0 Y n Canon T7i
Canon 5D Mark IV« »optical Y 3.2 1620 fixed Y 8000 7.0 n n Canon 5D Mark IV
Canon 80D« »optical Y 3.0 1040 swivel Y 8000 7.0 Y n Canon 80D
Canon M5« »2360 n 3.2 1620 tilting Y 4000 9.0 Y n Canon M5
Canon SL1« »optical n 3.0 1040 fixed Y 4000 4.9 Y n Canon SL1
Canon 6D« »optical Y 3.0 1040 fixed n 4000 4.5 n n Canon 6D
Nikon D3400« »optical n 3.0 921 fixed n 4000 5.0 Y n Nikon D3400
Nikon D750« »optical Y 3.2 1229 tilting n 4000 6.0 Y n Nikon D750
Nikon D610« »optical Y 3.2 921 fixed n 4000 6.0 Y n Nikon D610

One difference between the cameras concerns the presence of an on-board flash. The SL2 has one, while the 6D Mark II does not. While the build-in flash of the SL2 is not very powerful, it can at times be useful as a fill-in light.

Both the SL2 and the 6D Mark II write their imaging data to SDXC cards.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Type
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
Canon SL2»YstereomonoY-mini2.0YYYCanon SL2
Canon 6D Mark II«YstereomonoY-mini2.0YYYCanon 6D Mark II
Canon M50« »YstereomonoY-micro2.0YYYCanon M50
Canon T7« »Ymonomono--mini2.0YY-Canon T7
Canon 77D« »YstereomonoY-mini2.0YYYCanon 77D
Canon G9 X Mark II« »-stereomono--micro2.0YYYCanon G9 X Mark II
Canon M6« »YstereomonoY-mini2.0YYYCanon M6
Canon M100« »-stereomono--mini2.0YYYCanon M100
Canon T7i« »YstereomonoY-mini2.0YYYCanon T7i
Canon 5D Mark IV« »YmonomonoYYmini3.0YY-Canon 5D Mark IV
Canon 80D« »YstereomonoYYmini2.0YY-Canon 80D
Canon M5« »YstereomonoY-mini2.0YYYCanon M5
Canon SL1« »YmonomonoY-mini2.0---Canon SL1
Canon 6D« »YmonomonoY-mini2.0Y--Canon 6D
Nikon D3400« »Ymonomono--mini2.0Y-YNikon D3400
Nikon D750« »YstereomonoYYmini2.0Y--Nikon D750
Nikon D610« »YmonomonoYYmini2.0---Nikon D610

Both the SL2 and the 6D Mark II are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The SL2 replaced the earlier Canon SL1, while the 6D Mark II followed on from the Canon 6D.

Review summary: Canon SL2 vs Canon 6D Mark II

So how do things add up? Is there a clear favorite between the Canon SL2 and the Canon 6D Mark II? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Canon EOS Rebel SL2:

  • More dynamic range: Captures a larger spectrum of light and dark details (1.5 EV of extra DR).
  • More compact: Is smaller (122x93mm vs 144x111mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 312g or 41 percent) and hence easier to carry around.
  • Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
  • More affordable: Was introduced into a lower priced category (73 percent cheaper at launch).


Advantages of the Canon EOS 6D Mark II:

  • Better image quality: Scores markedly higher (6 points) in the DXO overall evaluation.
  • Better low-light sensitivity: Can shoot in dim conditions (1.5 stops ISO advantage).
  • Easier setting verification: Features a control panel on top to check shooting parameters.
  • Faster burst: Shoots at higher frequency (6.5 vs 5 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (1200 versus 650) out of a single battery charge.
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.

If the count of individual advantages (bullet points above) is taken as a guide, the 6D Mark II comes out slightly ahead of the SL2 (6 : 5 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera.

SL2 05:06 6D Mark II

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the SL2 or the 6D Mark II. 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 following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The full reviews are available by clicking on the site logo in the table header.

Review Scores
  Camera
Model
cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Camera
Model
Canon SL2»HiRec78/1004.5/54.5/54.5/5 Jun 2017 549 i i Canon SL2
Canon 6D Mark II«Rec80/1004.5/54/54/5 Jun 2017 1,999 i i Canon 6D Mark II
Canon M50« »Rec79/100--3.5/5 Feb 2018 779 i i Canon M50
Canon T7« »rev-3.5/5-3.5/5 Feb 2018 449 i i Canon T7
Canon 77D« »-82/1004.5/54.5/54/5 Feb 2017 899 i i Canon 77D
Canon G9 X Mark II« »-75/1004.5/54.5/54.5/5 Jan 2017 529 i i Canon G9 X Mark II
Canon M6« »-80/1004/54.5/54/5 Feb 2017 779 i i Canon M6
Canon M100« »Rec-4/5-3.5/5 Aug 2017 499 i i Canon M100
Canon T7i« »-80/1004.5/54/54/5 Feb 2017 749 i i Canon T7i
Canon 5D Mark IV« »HiRec87/1004.5/55/54.5/5 Aug 2016 3,499 i i Canon 5D Mark IV
Canon 80D« »HiRec84/1004.5/54.5/54.5/5 Feb 2016 1,199 i i Canon 80D
Canon M5« »Rec82/1004/54.5/54/5 Sep 2016 979 i i Canon M5
Canon SL1« »Rec78/1004/54/54/5 Mar 2013 549- i Canon SL1
Canon 6D« »HiRec83/1004.5/54.5/54.5/5 Sep 2012 2,099- i Canon 6D
Nikon D3400« »Rec76/1004/54.5/54.5/5 Aug 2016 499- i Nikon D3400
Nikon D750« »HiRec90/1004.5/55/54.5/5 Sep 2014 2,299 i i Nikon D750
Nikon D610« »HiRec87/1004.5/54.5/54.5/5 Oct 2013 1,999 i i Nikon D610

Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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, please send me an email, and I will try to update the database with the necessary infos.

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