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Canon T6i versus Canon M3

The Canon EOS Rebel T6i (called Canon 750D in some regions) and the Canon EOS M3 are two digital cameras that were officially introduced in February 2015. The T6i is a DSLR, while the M3 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. Both cameras offer a resolution of 24 megapixel.

Body comparison

The physical size and weight of the Canon T6i and the Canon M3 are illustrated in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth dimensions are rounded to the nearest millimeter. You can also use the toggle button 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 T6i – represents the basis for the calculations across all the size and weight measures).

Canon T6i vs Canon M3 front
T6i versus M3 top view
T6i and M3 rear side
Body view (T6i on the left)

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon M3 is considerably smaller (43 percent) than the Canon T6i. Moreover, the M3 is markedly lighter (34 percent) than the T6i. In this context, it is worth noting that neither the T6i nor the M3 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. Hence, you might want to study the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

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 comparisons there.

Camera Body Specifications
Camera Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(y/n)
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon T6i (⇒ rgt) 132 mm 101 mm 78 mm 555 g 440 no 2015 749discont. check
Canon M3 (⇒ lft) 111 mm 68 mm 44 mm 366 g 250 no 2015 679discont. check
Canon M100 (⇒ lft | rgt) 108 mm 67 mm 35 mm 302 g 295 no 2017 499 latest check
Canon T7i (⇒ lft | rgt) 131 mm 100 mm 76 mm 532 g 600 no 2017 749 latest check
Canon M5 (⇒ lft | rgt) 116 mm 89 mm 61 mm 427 g 295 no 2016 979 latest check
Canon T6s (⇒ lft | rgt) 132 mm 101 mm 78 mm 565 g 440 no 2015 849discont. check
Canon G5 X (⇒ lft | rgt) 112 mm 76 mm 44 mm 353 g 210 no 2015 799 latest check
Canon T5 (⇒ lft | rgt) 130 mm 100 mm 78 mm 480 g 500 no 2014 449discont. check
Canon G7 X (⇒ lft | rgt) 103 mm 60 mm 40 mm 304 g 210 no 2014 699discont. check
Canon T5i (⇒ lft | rgt) 133 mm 100 mm 79 mm 580 g 440 no 2013 649discont. check
Canon M (⇒ lft | rgt) 109 mm 66 mm 32 mm 298 g 230 no 2012 599discont. check
Canon T4i (⇒ lft | rgt) 133 mm 100 mm 79 mm 575 g 440 no 2012 849discont. check
Canon T2i (⇒ lft | rgt) 129 mm 98 mm 62 mm 530 g 440 no 2010 699discont. check
Canon T1i (⇒ lft | rgt) 129 mm 98 mm 62 mm 520 g 400 no 2009 799discont. check
Nikon D5600 (⇒ lft | rgt) 124 mm 97 mm 70 mm 465 g 970 no 2016 699 latest check

The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The M3 was somewhat cheaper (by 9 percent) than the T6i at launch, but both cameras fall into the same price category. 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

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. 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.

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.

Canon T6i and Canon M3 sensor measures
Sensor size

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 24 megapixel. This similarity in sensor specs implies that both the T6i and the M3 have the same pixel density, as well as the same pixel size. Moreover, the two cameras were released in close succession, so that their sensors are from the same technological generation.

T6i versus M3 MP
Sensor resolution

For most cameras, data on sensor performance has been reported by DXO Mark. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar image quality. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon T6i (⇒ rgt) APS-C 24.0 6000 4000 1080/60p 22.7 12.0 919 71
Canon M3 (⇒ lft) APS-C 24.0 6000 4000 1080/30p 22.8 11.8 1169 72
Canon M100 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.5 12.9 1272 78
Canon T7i (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon M5 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.4 12.4 1262 77
Canon T6s (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p 22.6 12.0 915 70
Canon G5 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p - - - -
Canon T5 (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.9 11.3 724 63
Canon G7 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 23.0 12.7 556 71
Canon T5i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 681 61
Canon M (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.2 827 65
Canon T4i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 722 62
Canon T2i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.5 784 66
Canon T1i (⇒ lft | rgt) APS-C 15.1 4752 3168 1080/20p 21.7 11.5 663 63
Nikon D5600 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 24.1 14.0 1306 84

Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, but the T6i provides a higher frame rate than the M3. It can shoot video footage at 1080/60p, while the M3 is limited to 1080/30p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the T6i has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the M3 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon T6i, the Canon M3, and comparable 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
(Y/n)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(Y/n)
Shutter
speed
(1/sec)
Shutter
flaps
(1/sec))
Build-in
Flash
(GN)
Build-in
Image
Stab
Canon T6i (⇒ rgt) optical no 3.0 1040 swivel YES 4000 5.0 12 no
Canon M3 (⇒ lft) no no 3.0 1040 tilting YES 4000 4.2 5 no
Canon M100 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 6.1 5 no
Canon T7i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 6.0 12 no
Canon M5 (⇒ lft | rgt) 2360 no 3.2 1620 tilting YES 4000 9.0 5 no
Canon T6s (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 4000 5.0 12 no
Canon G5 X (⇒ lft | rgt) 2360 no 3.0 1040 swivel YES 2000 5.9 7 YES
Canon T5 (⇒ lft | rgt) optical no 3 460 fixed no 4000 3.0 9.2 no
Canon G7 X (⇒ lft | rgt) no no 3.0 1040 tilting YES 2000 6.5 7 YES
Canon T5i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 13 no
Canon M (⇒ lft | rgt) no no 3.0 1040 fixed YES 4000 4.3 no no
Canon T4i (⇒ lft | rgt) optical no 3 1040 swivel YES 4000 5.0 13 no
Canon T2i (⇒ lft | rgt) optical no 3.0 1040 fixed no 4000 3.7 13 no
Canon T1i (⇒ lft | rgt) optical no 3.0 920 fixed no 4000 3.4 13 no
Nikon D5600 (⇒ lft | rgt) optical no 3.2 1037 swivel YES 4000 5.0 12 no

Both the T6i and the M3 have been discontinued, but can regularly be found used on ebay. The T6i was replaced by the Canon T7i, while the M3 was followed by the Canon M6.

Summary

So what is the bottom line? Is there a clear favorite between the Canon T6i and the Canon T6i? Below is a summary of the relative strengths of each of the two contestants.


Reasons to prefer the Canon EOS Rebel T6i:

  • Better video: Provides higher movie framerates (1080/60p vs 1080/30p).
  • Easier framing: Has an optical viewfinder for image framing and settings control.
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Faster burst: Shoots at higher frequency (5 vs 4.2 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (440 versus 250) on a single battery charge.

Arguments in favor of the Canon EOS M3:

  • Better low-light sensitivity: Can shoot in dim conditions (0.3 stops ISO advantage).
  • More compact: Is smaller (111x68mm vs 132x101mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 189g or 34 percent) and is thus easier to take along.
  • More legacy lens friendly: Can use many non-native lenses via adapters.

If the count of relative strengths (bullet points above) is taken as a measure, the T6i comes out slightly ahead of the M3 (5 : 4 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.

T6i 05:04 M3

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the T6i and the M3 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. This is where reviews by experts come in. The adjacent table relays the overall verdicts of several of the most popular camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.

Review scores
Camera camera
labs
dp
review
ephoto
zine
imaging
resource
photography
blog
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon T6i (⇒ rgt) - 75/100 4.5/5 4.5/5 4.5/5 2015 749discont. check
Canon M3 (⇒ lft) reviewed 75/100 4.5/5 4.5/5 4/5 2015 679discont. check
Canon M100 (⇒ lft | rgt) Rec .. 4/5 .. 3.5/5 2017 499 latest check
Canon T7i (⇒ lft | rgt) .. 80/100 Gold 4.5/5 .. 4/5 2017 749 latest check
Canon M5 (⇒ lft | rgt) Rec 82/100 Silver 4/5 4.5/5 4/5 2016 979 latest check
Canon T6s (⇒ lft | rgt) Rec 77/100 Silver 4.5/5 4.5/5 4.5/5 2015 849discont. check
Canon G5 X (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 4/5 4.5/5 2015 799 latest check
Canon T5 (⇒ lft | rgt) 4/5 - 4/5 4/5 4.5/5 2014 449discont. check
Canon G7 X (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 3.5/5 4.5/5 2014 699discont. check
Canon T5i (⇒ lft | rgt) - 76/100 Silver 4.5/5 4.5/5 4.5/5 2013 649discont. check
Canon M (⇒ lft | rgt) Rec - 4/5 3.5/5 4/5 2012 599discont. check
Canon T4i (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 4.5/5 4.5/5 2012 849discont. check
Canon T2i (⇒ lft | rgt) 88/100 HiRec 77/100 Gold 4/5 5/5 4.5/5 2010 699discont. check
Canon T1i (⇒ lft | rgt) 88/100 HiRec 74/100 HiRec 4.5/5 5/5 4.5/5 2009 799discont. check
Nikon D5600 (⇒ lft | rgt) - 79/100 Silver 4.5/5 4.5/5 4/5 2016 699 latest check

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. 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, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

Other comparisons

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, kindly get in touch, and I will try to add information on that model to the database.

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