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Canon 1Ds versus Canon T7i

The Canon EOS-1Ds and the Canon EOS Rebel T7i (labelled Canon 800D in some countries) are two digital cameras that were officially introduced, respectively, in September 2002 and February 2017. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds) and an APS-C (T7i) sensor. The 1Ds has a resolution of 11 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 vs Canon T7i

The side-by-side display below illustrates the physical size and weight of the Canon 1Ds and the Canon T7i. 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. 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 1Ds – represents the basis or 100 percent across all the size and weight measures).

Compare Canon 1Ds vs Canon T7i
1Ds versus T7i top view
1Ds and T7i rear side
Body view (1Ds 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 T7i is considerably smaller (47 percent) than the Canon 1Ds. Moreover, the T7i is substantially lighter (58 percent) than the 1Ds. It is worth mentioning in this context that the 1Ds 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) 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.

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 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 1Ds (⇒ rgt) 156 mm 157.6 mm 80 mm 1265 g 600 YES 2002 8,999discont. check
Canon T7i (⇒ lft) 131 mm 100 mm 76 mm 532 g 600 no 2017 749 latest check
Canon T7 (⇒ lft | rgt) 129 mm 101 mm 78 mm 475 g 500 no 2018 449 latest check
Canon 77D (⇒ lft | rgt) 131 mm 100 mm 76 mm 540 g 600 no 2017 899 latest check
Canon M6 (⇒ lft | rgt) 112 mm 68 mm 45 mm 390 g 295 no 2017 779 latest check
Canon SL2 (⇒ lft | rgt) 122 mm 93 mm 70 mm 453 g 650 no 2017 549 latest check
Canon 1D X Mark II (⇒ lft | rgt) 158 mm 168 mm 83 mm 1530 g 1210 YES 2016 5,999 latest check
Canon T5i (⇒ lft | rgt) 133 mm 100 mm 79 mm 580 g 440 no 2013 649discont. check
Canon 1D C (⇒ lft | rgt) 158 mm 164 mm 83 mm 1545 g 1120 YES 2012 14,999discont. check
Canon 1D Mark IV (⇒ lft | rgt) 156 mm 157 mm 80 mm 1230 g 1500 YES 2009 4,999discont. check
Canon 1Ds Mark III (⇒ lft | rgt) 150 mm 160 mm 80 mm 1385 g 1800 YES 2007 7,999discont. check
Canon 1D Mark III (⇒ lft | rgt) 156 mm 156.6 mm 80 mm 1155 g 2200 YES 2007 4,499discont. check
Canon 5D (⇒ lft | rgt) 152 mm 113 mm 75 mm 895 g 400 YES 2005 3,299discont. check
Canon 1D Mark II N (⇒ lft | rgt) 156 mm 158 mm 80 mm 1565 g 1200 YES 2005 3,999discont. check
Canon 1Ds Mark II (⇒ lft | rgt) 156 mm 157.6 mm 80 mm 1215 g 1200 YES 2004 7,999discont. check
Canon 1D Mark II (⇒ lft | rgt) 156 mm 158 mm 80 mm 1535 g 1200 YES 2004 4,499discont. check
Nikon D2Xs (⇒ lft | rgt) 157.5 mm 149.5 mm 86 mm 1252 g 3800 YES 2006 4,699discont. check

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 T7i was launched at a markedly lower price (by 92 percent) than the 1Ds, 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 1Ds vs Canon T7i

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 generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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 1Ds 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.

Canon 1Ds and Canon T7i sensor measures
Sensor size

Despite having a smaller sensor, the T7i offers a higher resolution of 24 megapixel, compared with 11 MP of the 1Ds. 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 8.83μm for the 1Ds). However, it should be noted that the T7i is much more recent (by 14 years and 4 months) than the 1Ds, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

1Ds versus T7i MP
Sensor resolution

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 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 1Ds (⇒ rgt) Full Frame 11.0 4064 2704 no 21.8 11.0 954 63
Canon T7i (⇒ lft) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon T7 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p .. .. .. ..
Canon 77D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon M6 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p .. .. .. ..
Canon SL2 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.4 1041 79
Canon 1D X Mark II (⇒ lft | rgt) Full Frame 20.0 5472 3648 4K/60p 24.1 13.5 3207 88
Canon T5i (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 681 61
Canon 1D C (⇒ lft | rgt) Full Frame 17.9 5184 3456 4K/24p - - - -
Canon 1D Mark IV (⇒ lft | rgt) APS-H 16.0 4896 3264 1080/30p 22.8 12.0 1320 74
Canon 1Ds Mark III (⇒ lft | rgt) Full Frame 21.0 5616 3744 no 24.0 12.0 1663 80
Canon 1D Mark III (⇒ lft | rgt) APS-H 10.1 3888 2592 no 22.7 11.7 1078 71
Canon 5D (⇒ lft | rgt) Full Frame 12.7 4368 2912 no 22.9 11.1 1368 71
Canon 1D Mark II N (⇒ lft | rgt) APS-H 8.2 3504 2336 no 22.3 11.2 975 66
Canon 1Ds Mark II (⇒ lft | rgt) Full Frame 16.6 4992 3328 no 23.3 11.3 1480 74
Canon 1D Mark II (⇒ lft | rgt) APS-H 8.2 3504 2336 no 22.3 11.1 1003 66
Nikon D2Xs (⇒ lft | rgt) APS-C 12.2 4288 2848 no 22.2 10.9 489 59

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 does not. The highest resolution format that the T7i can use is 1080/60p.

Feature comparison: Canon 1Ds vs Canon T7i

Apart from body and sensor, cameras can and do differ across a variety of features. The 1Ds 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 adjacent table lists some of the other core features of the Canon 1Ds and Canon T7i along with similar information for a selection of comparators. If you need more detail on the specs, you can find comprehensive listings, 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 1Ds (⇒ rgt) optical YES 2.0 120 fixed no 8000 3.0 no no
Canon T7i (⇒ lft) optical no 3.0 1040 swivel YES 4000 6.0 12 no
Canon T7 (⇒ lft | rgt) optical no 3.0 920 fixed no 4000 3.0 9.2 no
Canon 77D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 4000 6.0 12 no
Canon M6 (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 9.0 5 no
Canon SL2 (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 9.8 no
Canon 1D X Mark II (⇒ lft | rgt) optical YES 3.2 1620 fixed YES 8000 16.0 no no
Canon T5i (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 13 no
Canon 1D C (⇒ lft | rgt) optical YES 3.2 1040 fixed no 8000 14.0 no no
Canon 1D Mark IV (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 10.0 no no
Canon 1Ds Mark III (⇒ lft | rgt) optical YES 3.0 230 fixed no 8000 5.0 no no
Canon 1D Mark III (⇒ lft | rgt) optical YES 3.0 230 fixed no 8000 10.0 no no
Canon 5D (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 3.0 no no
Canon 1D Mark II N (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 8.5 no no
Canon 1Ds Mark II (⇒ lft | rgt) optical YES 2.0 230 fixed no 8000 4.0 no no
Canon 1D Mark II (⇒ lft | rgt) optical YES 2.0 230 fixed no 8000 8.3 no no
Nikon D2Xs (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 5.0 no no

The T7i is a current model that online retailers, such as amazon, will have in stock. In contrast, the 1Ds has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the 1Ds was succeeded by the Canon 1Ds Mark II.

Review summary: Canon 1Ds vs Canon T7i

So what conclusions can be drawn? Is the Canon 1Ds better than the Canon T7i or vice versa? A synthesis of the relative strong points of each of the models is listed below.


Arguments in favor of the Canon EOS-1Ds:

  • 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.
  • Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
  • More heavily discounted: Has been available for much longer (launched in September 2002).

Advantages of the Canon EOS Rebel T7i:

  • More detail: Has more megapixels (24 vs 11MP), which boosts linear resolution by 48%.
  • Broader imaging potential: Can capture not only stills but also 1080/60p video.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.0") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 120k 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 3 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (131x100mm vs 156x157.6mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 733g or 58 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 (92 percent cheaper at launch).
  • More modern: Reflects 14 years and 4 months of technical progress since the 1Ds launch.

If the count of relative strengths (bullet points above) is taken as a measure, the T7i is the clear winner of the contest (12 : 4 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 04:12 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 and the T7i in practical situations. 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 expert reviews are important. The following table reports the overall rankings of the cameras as published by some of the major 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
.com
dp
review
.com
ephoto
zine
.com
imaging
resource
.com
photography
blog
.com
Camera
Launch
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 1Ds (⇒ rgt) - HiRec - - - 2002 8,999discont. check
Canon T7i (⇒ lft) .. 80/100 Gold 4.5/5 4/5 4/5 2017 749 latest check
Canon T7 (⇒ lft | rgt) reviewed .. 3.5/5 .. 3.5/5 2018 449 latest check
Canon 77D (⇒ lft | rgt) .. 82/100 Silver 4.5/5 4.5/5 4/5 2017 899 latest check
Canon M6 (⇒ lft | rgt) - 80/100 Silver 4/5 4.5/5 4/5 2017 779 latest check
Canon SL2 (⇒ lft | rgt) HiRec 78/100 Silver 4.5/5 4.5/5 4.5/5 2017 549 latest check
Canon 1D X Mark II (⇒ lft | rgt) - 89/100 Gold 4.5/5 5/5 4.5/5 2016 5,999 latest check
Canon T5i (⇒ lft | rgt) - 76/100 Silver 4.5/5 4.5/5 4.5/5 2013 649discont. check
Canon 1D C (⇒ lft | rgt) - - - - - 2012 14,999discont. check
Canon 1D Mark IV (⇒ lft | rgt) - 89/100 Gold - 5/5 - 2009 4,999discont. check
Canon 1Ds Mark III (⇒ lft | rgt) - HiRec 4.5/5 - - 2007 7,999discont. check
Canon 1D Mark III (⇒ lft | rgt) - - - reviewed - 2007 4,499discont. check
Canon 5D (⇒ lft | rgt) 88/100 HiRec reviewed reviewed - 2005 3,299discont. check
Canon 1D Mark II N (⇒ lft | rgt) - - - - - 2005 3,999discont. check
Canon 1Ds Mark II (⇒ lft | rgt) - HiRec - - - 2004 7,999discont. check
Canon 1D Mark II (⇒ lft | rgt) - HiRec - reviewed - 2004 4,499discont. check
Nikon D2Xs (⇒ lft | rgt) - - - reviewed - 2006 4,699discont. check

Care should be taken when interpreting the review scores above, 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 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? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored. If you cannot find the camera you are interested in, please contact me, and I will try to update the database with the necessary infos.

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