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Canon 1D Mark III versus Canon 750D

The Canon EOS-1D Mark III and the Canon EOS 750D (labelled Canon T6i in some countries) are two digital cameras that were announced, respectively, in February 2007 and February 2015. Both are DSLR (Digital Single Lens Reflex) cameras that are based on an APS-H (1D Mark III) and an APS-C (750D) sensor. The 1D Mark III has a resolution of 10.1 megapixel, whereas the 750D provides 24 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 1D Mark III vs Canon 750D

The side-by-side display below illustrates the physical size and weight of the Canon 1D Mark III and the Canon 750D. 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. 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 1D Mark III – represents the basis for the calculations across all the size and weight measures).

Snapsort Canon 1D Mark III vs Canon 750D
Compare 1D Mark III versus 750D top
Compare 1D Mark III and 750D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 750D is considerably smaller (45 percent) than the Canon 1D Mark III. Moreover, the 750D is substantially lighter (52 percent) than the 1D Mark III. It is worth mentioning in this context that the 1D Mark III is splash and dust resistant, while the 750D 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 1D Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (750D). You can find a comprehensive overview of suitable optics in the Canon EF Lens Catalog.

Concerning battery life, the 1D Mark III gets 2200 shots out of its LP-E4 battery, while the 750D can take 440 images on a single charge of its LP-E17 power pack.

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 camera comparisons there.

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)
Canon 1D Mark III» 6.1 in 6.2 in 3.1 in 40.7 oz 2200 Y Feb 2007 4,499- i
Canon 750D« 5.2 in 4.0 in 3.1 in 19.6 oz 440 n Feb 2015 749- i
Canon 800D« » 5.2 in 3.9 in 3.0 in 18.8 oz 600 n Feb 2017 749 i i
Canon 77D« » 5.2 in 3.9 in 3.0 in 19.0 oz 600 n Feb 2017 899 i i
Canon 760D« » 5.2 in 4.0 in 3.1 in 19.9 oz 440 n Feb 2015 849- i
Canon 5DS R« » 6.0 in 4.6 in 3.0 in 32.8 oz 700 Y Feb 2015 3,699 i i
Canon M3« » 4.4 in 2.7 in 1.7 in 12.9 oz 250 n Feb 2015 679- i
Canon 700D« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649- i
Canon 5D Mark III« » 6.0 in 4.6 in 3.0 in 33.5 oz 950 Y Mar 2012 3,499- i
Canon 1D Mark IV« » 6.1 in 6.2 in 3.1 in 43.4 oz 1500 Y Oct 2009 4,999- i
Canon 5D Mark II« » 6.0 in 4.5 in 3.0 in 30.0 oz 850 Y Sep 2008 3,499- i
Canon 1Ds Mark III« » 5.9 in 6.3 in 3.1 in 48.9 oz 1800 Y Aug 2007 7,999- i
Canon 1D Mark II« » 6.1 in 6.2 in 3.1 in 54.1 oz 1200 Y Jan 2004 4,499- i
Canon 1Ds« » 6.1 in 6.2 in 3.1 in 44.6 oz 600 Y Sep 2002 8,999- i
Nikon D3S« » 6.3 in 6.2 in 3.5 in 43.7 oz 4200 Y Oct 2009 5,199- i
Nikon D3« » 6.3 in 6.2 in 3.5 in 45.9 oz 4300 Y Aug 2007 4,999- i
Nikon D2Xs« » 6.2 in 5.9 in 3.4 in 44.2 oz 3800 Y Jun 2006 4,699- i

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 750D was launched at a markedly lower price (by 83 percent) than the 1D Mark III, 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.

 

Sensor comparison: Canon 1D Mark III vs Canon 750D

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. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better 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.

Of the two cameras under consideration, the Canon 1D Mark III features an APS-H sensor and the Canon 750D an APS-C sensor. The sensor area in the 750D is 37 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.3 and 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 1D Mark III and Canon 750D sensor measures

Despite having a smaller sensor, the 750D offers a higher resolution of 24 megapixel, compared with 10.1 MP of the 1D Mark III. This megapixel 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 7.21μm for the 1D Mark III). However, it should be noted that the 750D is much more recent (by 7 years and 11 months) than the 1D Mark III, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

1D Mark III versus 750D MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 1D Mark III» APS-H 10.1 3888 2592-22.711.7107871
Canon 750D« APS-C 24.0 6000 40001080/60p22.712.091971
Canon 800D« » APS-C 24.0 6000 40001080/60p----
Canon 77D« » APS-C 24.0 6000 40001080/60p23.613.397178
Canon 760D« » APS-C 24.0 6000 40001080/30p22.612.091570
Canon 5DS R« » Full Frame 50.3 8688 57921080/60p24.612.4230886
Canon M3« » APS-C 24.0 6000 40001080/30p22.811.8116972
Canon 700D« » APS-C 17.9 5184 34561080/30p21.711.268161
Canon 5D Mark III« » Full Frame 22.1 5760 38401080/30p24.011.7229381
Canon 1D Mark IV« » APS-H 16.0 4896 32641080/30p22.812.0132074
Canon 5D Mark II« » Full Frame 21.0 5616 37441080/30p23.711.9181579
Canon 1Ds Mark III« » Full Frame 21.0 5616 3744-24.012.0166380
Canon 1D Mark II« » APS-H 8.2 3504 2336-22.311.1100366
Canon 1Ds« » Full Frame 11.0 4064 2704-21.811.095463
Nikon D3S« » Full Frame 12.1 4256 2832720/24p23.512.0325382
Nikon D3« » Full Frame 12.1 4256 2832-23.512.2229081
Nikon D2Xs« » APS-C 12.2 4288 2848-22.210.948959

Many modern cameras cannot only take still pictures, but also record videos. The 750D indeed provides for movie recording, while the 1D Mark III does not. The highest resolution format that the 750D can use is 1080/60p.

 

Feature comparison: Canon 1D Mark III vs Canon 750D

Apart from body and sensor, cameras can and do differ across a range of features. The 1D Mark III and the 750D 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 1D Mark III and Canon 750D in connection with corresponding information for a sample of similar cameras. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.

Core Features
  Camera 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
Canon 1D Mark III»optical Y 3.0 230 fixed n 8000 10.0 n n
Canon 750D«optical n 3.0 1040 swivel Y 4000 5.0 Y n
Canon 800D« »optical n 3.0 1040 swivel Y 4000 6.0 Y n
Canon 77D« »optical Y 3.0 1040 swivel Y 4000 6.0 Y n
Canon 760D« »optical Y 3.0 1040 swivel Y 4000 5.0 Y n
Canon 5DS R« »optical Y 3.2 1040 fixed n 8000 5.0 n n
Canon M3« »- n 3.0 1040 tilting Y 4000 4.2 Y n
Canon 700D« »optical n 3.0 1040 swivel Y 4000 5.0 Y n
Canon 5D Mark III« »optical Y 3.2 1040 fixed n 8000 6.0 n n
Canon 1D Mark IV« »optical Y 3.0 920 fixed n 8000 10.0 n n
Canon 5D Mark II« »optical Y 3.0 920 fixed n 8000 3.9 n n
Canon 1Ds Mark III« »optical Y 3.0 230 fixed n 8000 5.0 n n
Canon 1D Mark II« »optical Y 2.0 230 fixed n 8000 8.3 n n
Canon 1Ds« »optical Y 2.0 120 fixed n 8000 3.0 n n
Nikon D3S« »optical Y 3.0 921 fixed n 8000 11.0 n n
Nikon D3« »optical Y 3.0 922 fixed n 8000 11.0 n n
Nikon D2Xs« »optical Y 2.5 230 fixed n 8000 5.0 n n

Both the 1D Mark III and the 750D have been discontinued, but can regularly be found used on eBay. The 1D Mark III was replaced by the Canon 1D Mark IV, while the 750D was followed by the Canon 800D.

Review summary: Canon 1D Mark III vs Canon 750D

So what is the bottom line? Is there a clear favorite between the Canon 1D Mark III and the Canon 750D? A synthesis of the relative strong points of each of the models is listed below.


Advantages of the Canon EOS-1D Mark III:

  • Easier setting verification: Has an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
  • Longer lasting: Can take more shots (2200 versus 440) 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 February 2007).


Reasons to prefer the Canon EOS 750D:

  • More detail: Has more megapixels (24 vs 10.1MP), which boosts linear resolution by 54%.
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
  • More flexible LCD: Has swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More compact: Is smaller (132x101mm vs 156x156.6mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 600g or 52 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 (83 percent cheaper at launch).
  • More modern: Reflects 7 years and 11 months of technical progress since the 1D Mark III launch.

If the count of relative strengths (bullet points above) is taken as a measure, the 750D is the clear winner of the contest (10 : 6 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.

1D Mark III 06:10 750D

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the 1D Mark III or the 750D handle or perform in practice. 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 why hands-on reviews by experts are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). You can find the full text of the reviews by clicking on the site logo in the table header.

Review scores
  Camera cameralabs dpreview ephotozine imaging-resource photographyblog Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Used
Price
(USD)
Canon 1D Mark III»---rev- Feb 2007 4,499- i
Canon 750D«-75/1004.5/54.5/54.5/5 Feb 2015 749- i
Canon 800D« »-80/1004.5/54/54/5 Feb 2017 749 i i
Canon 77D« »-82/1004.5/54.5/54/5 Feb 2017 899 i i
Canon 760D« »Rec77/1004.5/54.5/54.5/5 Feb 2015 849- i
Canon 5DS R« »Rec83/1005/55/54.5/5 Feb 2015 3,699 i i
Canon M3« »rev75/1004.5/54.5/54/5 Feb 2015 679- i
Canon 700D« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i
Canon 5D Mark III« »HiRec82/1004.5/55/54.5/5 Mar 2012 3,499- i
Canon 1D Mark IV« »-89/100-5/5- Oct 2009 4,999- i
Canon 5D Mark II« »91/10079/1004/55/5- Sep 2008 3,499- i
Canon 1Ds Mark III« »-HiRec4.5/5-- Aug 2007 7,999- i
Canon 1D Mark II« »-HiRec-rev- Jan 2004 4,499- i
Canon 1Ds« »-HiRec--- Sep 2002 8,999- i
Nikon D3S« »-89/1004.5/55/55/5 Oct 2009 5,199- i
Nikon D3« »-HiRec5/5rev4.5/5 Aug 2007 4,999- i
Nikon D2Xs« »---rev- Jun 2006 4,699- i

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. 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 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 make a corresponding selection in the search boxes below. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If you cannot find the camera you are interested in, kindly get in touch, and I will try to update the database with the necessary infos.

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