PW

Canon 1Ds Mark III versus Canon T7i

The Canon EOS-1Ds Mark III and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were announced, respectively, in August 2007 and February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds Mark III) and an APS-C (T7i) sensor. The 1Ds Mark III has a resolution of 21 megapixel, whereas the T7i 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 1Ds Mark III vs Canon T7i

An illustration of the physical size and weight of the Canon 1Ds Mark III and the Canon T7i 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 size dimensions are rounded to the nearest millimeter. You can also toggle the display 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 – the 1Ds Mark III – represents the basis or 100 percent across all the size and weight measures).

Compare Canon 1Ds Mark III vs Canon T7i
Compare 1Ds Mark III versus T7i top
Compare 1Ds Mark III and 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 considerably smaller (45 percent) than the Canon 1Ds Mark III. Moreover, the T7i is substantially lighter (62 percent) than the 1Ds Mark III. It is worth mentioning in this context that the 1Ds Mark III 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 1Ds Mark III) will tend to go along with bigger and heavier lenses, while more compact options are available for the smaller-sensor camera (T7i). You can find a comprehensive overview of suitable optics in the Canon EF Lens Catalog.

Concerning battery life, the 1Ds Mark III gets 1800 shots out of its LP-E4 battery, while the T7i can take 600 images on a single charge of its LP-E17 power pack. As can be seen in the images above, the 1Ds Mark III has a battery grip build in. This facilitates image-taking in portrait orientation and gives it additional battery power. In order to provide similar functionality for the T7i, there are third party battery grips available as optional accessories (see here on eBay).

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 1Ds Mark III» 150 mm 160 mm 80 mm 1385 g 1800 Y Aug 2007 7,999- i Canon 1Ds Mark III
Canon T7i« 131 mm 100 mm 76 mm 532 g 600 n Feb 2017 749 i i Canon T7i
Canon 77D« » 131 mm 100 mm 76 mm 540 g 600 n Feb 2017 899 i i Canon 77D
Canon SL2« » 122 mm 93 mm 70 mm 453 g 650 n Jun 2017 549 i i Canon SL2
Canon 1D X Mark II« » 158 mm 168 mm 83 mm 1530 g 1210 Y Feb 2016 5,999 i i Canon 1D X Mark II
Canon T6i« » 132 mm 101 mm 78 mm 555 g 440 n Feb 2015 749- i Canon T6i
Canon T6s« » 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 849- i Canon T6s
Canon T5i« » 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 649- i Canon T5i
Canon 1D C« » 158 mm 164 mm 83 mm 1545 g 1120 Y Apr 2012 14,999- i Canon 1D C
Canon 5D Mark III« » 152 mm 116 mm 76 mm 950 g 950 Y Mar 2012 3,499- i Canon 5D Mark III
Canon 6D« » 145 mm 111 mm 71 mm 770 g 1090 Y Sep 2012 2,099- i Canon 6D
Canon 1D X« » 158 mm 168 mm 83 mm 1551 g 1120 Y Oct 2011 6,799- i Canon 1D X
Canon 1D Mark IV« » 156 mm 157 mm 80 mm 1230 g 1500 Y Oct 2009 4,999- i Canon 1D Mark IV
Canon 5D Mark II« » 152 mm 114 mm 75 mm 850 g 850 Y Sep 2008 3,499- i Canon 5D Mark II
Canon 1D Mark III« » 156 mm 156.6 mm 80 mm 1155 g 2200 Y Feb 2007 4,499- i Canon 1D Mark III
Canon 1Ds Mark II« » 156 mm 157.6 mm 80 mm 1215 g 1200 Y Sep 2004 7,999- i Canon 1Ds Mark II
Nikon D3X« » 160 mm 157 mm 88 mm 1260 g 4400 Y Dec 2008 7,999- i Nikon D3X

Any camera purchase will naturally be influenced heavily by the price. 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 91 percent) than the 1Ds Mark III, which puts it into a different 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.

 

Sensor comparison: Canon 1Ds Mark III vs Canon T7i

The size of the sensor inside a digital camera is one of the key determinants 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. 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 tend to be more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Canon 1Ds Mark III features a full frame sensor and the Canon T7i an APS-C sensor. The sensor area in the T7i is 62 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.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors.

Canon 1Ds Mark III and Canon T7i sensor measures

Despite having a smaller sensor, the T7i offers a higher resolution of 24 megapixel, compared with 21 MP of the 1Ds 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 6.41μm for the 1Ds Mark III). However, it should be noted that the T7i is much more recent (by 9 years and 5 months) than the 1Ds Mark III, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The T7i has on-sensor phase detect pixels, which results in relatively fast and reliable autofocus acquisition during video recording.

1Ds Mark III versus T7i 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar 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 1Ds Mark III» Full Frame 21.0 5616 3744-24.012.0166380Canon 1Ds Mark III
Canon T7i« APS-C 24.0 6000 40001080/60p----Canon T7i
Canon 77D« » APS-C 24.0 6000 40001080/60p23.613.397178Canon 77D
Canon SL2« » APS-C 24.0 6000 40001080/60p23.613.4104179Canon SL2
Canon 1D X Mark II« » Full Frame 20.0 5472 36484K/60p24.113.5320788Canon 1D X Mark II
Canon T6i« » APS-C 24.0 6000 40001080/60p22.712.091971Canon T6i
Canon T6s« » APS-C 24.0 6000 40001080/30p22.612.091570Canon T6s
Canon T5i« » APS-C 17.9 5184 34561080/30p21.711.268161Canon T5i
Canon 1D C« » Full Frame 17.9 5184 34564K/24p----Canon 1D C
Canon 5D Mark III« » Full Frame 22.1 5760 38401080/30p24.011.7229381Canon 5D Mark III
Canon 6D« » Full Frame 20.0 5472 36481080/30p23.812.1234082Canon 6D
Canon 1D X« » Full Frame 17.9 5184 34561080/30p23.811.8278682Canon 1D X
Canon 1D Mark IV« » APS-H 16.0 4896 32641080/30p22.812.0132074Canon 1D Mark IV
Canon 5D Mark II« » Full Frame 21.0 5616 37441080/30p23.711.9181579Canon 5D Mark II
Canon 1D Mark III« » APS-H 10.1 3888 2592-22.711.7107871Canon 1D Mark III
Canon 1Ds Mark II« » Full Frame 16.6 4992 3328-23.311.3148074Canon 1Ds Mark II
Nikon D3X« » Full Frame 24.4 6048 4032-24.713.7199288Nikon D3X

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The T7i indeed provides for movie recording, while the 1Ds Mark III does not. The highest resolution format that the T7i can use is 1080/60p.

 

Feature comparison: Canon 1Ds Mark III vs Canon T7i

Apart from body and sensor, cameras can and do differ across a range of features. The 1Ds Mark III 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 table below summarizes some of the other core capabilities of the Canon 1Ds Mark III and Canon T7i 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 1Ds Mark III»optical Y 3.0 230 fixed n 8000 5.0 n n Canon 1Ds Mark III
Canon T7i«optical n 3.0 1040 swivel Y 4000 6.0 Y n Canon T7i
Canon 77D« »optical Y 3.0 1040 swivel Y 4000 6.0 Y n Canon 77D
Canon SL2« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon SL2
Canon 1D X Mark II« »optical Y 3.2 1620 fixed Y 8000 16.0 n n Canon 1D X Mark II
Canon T6i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon T6i
Canon T6s« »optical Y 3.0 1040 swivel Y 4000 5.0 Y n Canon T6s
Canon T5i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon T5i
Canon 1D C« »optical Y 3.2 1040 fixed n 8000 14.0 n n Canon 1D C
Canon 5D Mark III« »optical Y 3.2 1040 fixed n 8000 6.0 n n Canon 5D Mark III
Canon 6D« »optical Y 3.0 1040 fixed n 4000 4.5 n n Canon 6D
Canon 1D X« »optical Y 3.2 1040 fixed n 8000 14.0 n n Canon 1D X
Canon 1D Mark IV« »optical Y 3.0 920 fixed n 8000 10.0 n n Canon 1D Mark IV
Canon 5D Mark II« »optical Y 3.0 920 fixed n 8000 3.9 n n Canon 5D Mark II
Canon 1D Mark III« »optical Y 3.0 230 fixed n 8000 10.0 n n Canon 1D Mark III
Canon 1Ds Mark II« »optical Y 2.0 230 fixed n 8000 4.0 n n Canon 1Ds Mark II
Nikon D3X« »optical Y 3.0 922 fixed n 8000 5.0 n n Nikon D3X

One feature that is present on the 1Ds Mark III, 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.

The 1Ds Mark III writes its imaging data to Compact Flash cards, while the T7i uses SDXC cards. The 1Ds Mark III features dual card slots, which can be very useful in case a memory card fails. In contrast, the T7i only has one slot.

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 1Ds Mark III»Y-----2.0---Canon 1Ds Mark III
Canon T7i«YstereomonoY-mini2.0YYYCanon T7i
Canon 77D« »YstereomonoY-mini2.0YYYCanon 77D
Canon SL2« »YstereomonoY-mini2.0YYYCanon SL2
Canon 1D X Mark II« »YmonomonoYYmini3.0---Canon 1D X Mark II
Canon T6i« »YstereomonoY-mini2.0YY-Canon T6i
Canon T6s« »YstereomonoY-mini2.0YY-Canon T6s
Canon T5i« »YstereomonoY-mini2.0---Canon T5i
Canon 1D C« »YmonomonoYYmini2.0---Canon 1D C
Canon 5D Mark III« »YmonomonoYYmini2.0---Canon 5D Mark III
Canon 6D« »YmonomonoY-mini2.0Y--Canon 6D
Canon 1D X« »Ymono-Y-mini2.0---Canon 1D X
Canon 1D Mark IV« »Ystereo-Y-mini2.0---Canon 1D Mark IV
Canon 5D Mark II« »YmonomonoY-mini2.0---Canon 5D Mark II
Canon 1D Mark III« »Y-----2.0---Canon 1D Mark III
Canon 1Ds Mark II« »Y-----2.0---Canon 1Ds Mark II
Nikon D3X« »Y----mini2.0---Nikon D3X

The T7i is a recent model that features in the current product line-up of Canon. In contrast, the 1Ds Mark III has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 1Ds Mark III was succeeded by the Canon 1DX.

Review summary: Canon 1Ds Mark III vs Canon T7i

So how do things add up? Is the Canon 1Ds Mark III better than the Canon T7i or vice versa? The listing below highlights the relative strengths of the two models.


Advantages of the Canon EOS-1Ds Mark III:

  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • More portrait friendly: Features an integrated vertical grip for easier portrait shooting.
  • Longer lasting: Can take more shots (1800 versus 600) on a single battery charge.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been available for much longer (launched in August 2007).


Reasons to prefer the Canon EOS Rebel T7i:

  • More detail: Has more megapixels (24 vs 21MP), which boosts linear resolution by 7%.
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • Better video autofocus: Features on-sensor phase-detection for more confident movie autofocus.
  • 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.
  • Faster burst: Shoots at higher frequency (6 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (131x100mm vs 150x160mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 853g or 62 percent) and is thus easier to take along.
  • Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
  • Easier file upload: Has wifi build in for automatic backup or image transfer to the web.
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced into a lower priced category (91 percent cheaper at launch).
  • More modern: Reflects 9 years and 5 months of technical progress since the 1Ds Mark III launch.

If the count of individual advantages (bullet points above) is taken as a guide, the T7i is the clear winner of the contest (15 : 7 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera.

1Ds Mark III 07:15 T7i

In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it says nothing about, for example, the handling, responsiveness, and overall imaging quality of the 1Ds Mark III and the T7i in practical situations. 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 expert reviews are important. The table below summarizes the assessments of some of the best known camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog). The detailed reviews can be accessed 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 1Ds Mark III»-HiRec4.5/5-- Aug 2007 7,999- i Canon 1Ds Mark III
Canon T7i«-80/1004.5/54/54/5 Feb 2017 749 i i Canon T7i
Canon 77D« »-82/1004.5/54.5/54/5 Feb 2017 899 i i Canon 77D
Canon SL2« »HiRec78/1004.5/54.5/54.5/5 Jun 2017 549 i i Canon SL2
Canon 1D X Mark II« »-89/1004.5/55/54.5/5 Feb 2016 5,999 i i Canon 1D X Mark II
Canon T6i« »-75/1004.5/54.5/54.5/5 Feb 2015 749- i Canon T6i
Canon T6s« »Rec77/1004.5/54.5/54.5/5 Feb 2015 849- i Canon T6s
Canon T5i« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i Canon T5i
Canon 1D C« »----- Apr 2012 14,999- i Canon 1D C
Canon 5D Mark III« »HiRec82/1004.5/55/54.5/5 Mar 2012 3,499- i Canon 5D Mark III
Canon 6D« »HiRec83/1004.5/54.5/54.5/5 Sep 2012 2,099- i Canon 6D
Canon 1D X« »--4.5/54.5/54.5/5 Oct 2011 6,799- i Canon 1D X
Canon 1D Mark IV« »-89/100-5/5- Oct 2009 4,999- i Canon 1D Mark IV
Canon 5D Mark II« »91/10079/1004/55/5- Sep 2008 3,499- i Canon 5D Mark II
Canon 1D Mark III« »---rev- Feb 2007 4,499- i Canon 1D Mark III
Canon 1Ds Mark II« »-HiRec--- Sep 2004 7,999- i Canon 1Ds Mark II
Nikon D3X« »-86/1004/55/55/5 Dec 2008 7,999- i Nikon D3X

The review scores listed above should be treated 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 comparisons of ratings among very different cameras or across long time periods have little meaning. 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 are interested in seeing how other cameras pair up, just make your choice using the following search menu. 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 the camera you are interested in is not available, please send me an email, and I will try to update the database with the necessary infos.

~

    You are here  »   »