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Canon 1Ds Mark III versus Canon 70D

The Canon EOS-1Ds Mark III and the Canon EOS 70D are two digital cameras that were officially introduced, respectively, in August 2007 and July 2013. Both are DSLR (Digital Single Lens Reflex) cameras that are based on a full frame (1Ds Mark III) and an APS-C (70D) sensor. The 1Ds Mark III has a resolution of 21 megapixel, whereas the 70D provides 20 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 70D

An illustration of the physical size and weight of the Canon 1Ds Mark III and the Canon 70D is provided in the side-by-side display below. Three consecutive perspectives from the front, the top, and the back are presented. All size 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 side – the 1Ds Mark III – represents the basis for the calculations across all the size and weight measures).

Compare Canon 1Ds Mark III vs Canon 70D
1Ds Mark III versus 70D top view
1Ds Mark III and 70D rear side

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 70D is considerably smaller (40 percent) than the Canon 1Ds Mark III. Moreover, the 70D is substantially lighter (45 percent) than the 1Ds Mark III. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.

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 (70D). 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 70D can take 920 images on a single charge of its LP-E6 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 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 Mark III (⇒ rgt) 5.9 in 6.3 in 3.1 in 48.9 oz 1800 YES 2007 7,999discont. check
Canon 70D (⇒ lft) 5.5 in 4.1 in 3.1 in 26.6 oz 920 YES 2013 1,199discont. check
Canon 80D (⇒ lft | rgt) 5.5 in 4.1 in 3.1 in 25.8 oz 960 YES 2016 1,199 latest check
Canon 1D X Mark II (⇒ lft | rgt) 6.2 in 6.6 in 3.3 in 54.0 oz 1210 YES 2016 5,999 latest check
Canon G3 X (⇒ lft | rgt) 4.8 in 3.0 in 4.1 in 25.9 oz 300 YES 2015 999 latest check
Canon 7D II (⇒ lft | rgt) 5.9 in 4.4 in 3.1 in 32.1 oz 670 YES 2014 1,799 latest check
Canon 6D (⇒ lft | rgt) 5.7 in 4.4 in 2.8 in 27.2 oz 1090 YES 2012 2,099discont. check
Canon 5D Mark III (⇒ lft | rgt) 6.0 in 4.6 in 3.0 in 33.5 oz 950 YES 2012 3,499discont. check
Canon 1D C (⇒ lft | rgt) 6.2 in 6.5 in 3.3 in 54.5 oz 1120 YES 2012 14,999discont. check
Canon 1D X (⇒ lft | rgt) 6.2 in 6.6 in 3.3 in 54.7 oz 1120 YES 2011 6,799discont. check
Canon 60D (⇒ lft | rgt) 5.7 in 4.2 in 3.1 in 26.6 oz 1100 YES 2010 1,399discont. check
Canon 1D Mark IV (⇒ lft | rgt) 6.1 in 6.2 in 3.1 in 43.4 oz 1500 YES 2009 4,999discont. check
Canon 5D Mark II (⇒ lft | rgt) 6.0 in 4.5 in 3.0 in 30.0 oz 850 YES 2008 3,499discont. check
Canon 1D Mark III (⇒ lft | rgt) 6.1 in 6.2 in 3.1 in 40.7 oz 2200 YES 2007 4,499discont. check
Canon 1Ds Mark II (⇒ lft | rgt) 6.1 in 6.2 in 3.1 in 42.9 oz 1200 YES 2004 7,999discont. check
Nikon D7100 (⇒ lft | rgt) 5.4 in 4.2 in 3.0 in 27.0 oz 950 YES 2013 1,199discont. check
Nikon D3X (⇒ lft | rgt) 6.3 in 6.2 in 3.5 in 44.4 oz 4400 YES 2008 7,999discont. 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 70D was launched at a markedly lower price (by 85 percent) than the 1Ds 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 1Ds Mark III vs Canon 70D

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 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. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to 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 70D an APS-C sensor. The sensor area in the 70D 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 Mark III and Canon 70D sensor measures

With 21MP, the 1Ds Mark III offers a slightly higher resolution than the 70D (20MP), but the 1Ds Mark III nevertheless has larger individual pixels (pixel pitch of 6.41μm versus 4.11μm for the 70D) due to its larger sensor. However, the 70D is a somewhat more recent model (by 5 years and 10 months) than the 1Ds Mark III, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels.

1Ds Mark III versus 70D MP

For most cameras, data on sensor performance has been reported by DXO Mark. 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 review, the 1Ds Mark III provides substantially higher image quality than the 70D, with an overall score that is 12 points higher. This advantage is based on 1.5 bits higher color depth, 0.4 EV in additional dynamic range, and 0.8 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics
Camera Sensor
Class
Resolution
(Megapixel)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Canon 1Ds Mark III (⇒ rgt) Full Frame 21.0 5616 3744 no 24.0 12.0 1663 80
Canon 70D (⇒ lft) APS-C 20.0 5472 3648 1080/30p 22.5 11.6 926 68
Canon 80D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 23.6 13.2 1135 79
Canon 1D X Mark II (⇒ lft | rgt) Full Frame 20.0 5472 3648 4K/60p 24.1 13.5 3207 88
Canon G3 X (⇒ lft | rgt) 1-inch 20.0 5472 3648 1080/60p 21.4 12.3 521 63
Canon 7D II (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/60p 22.4 11.8 1082 70
Canon 6D (⇒ lft | rgt) Full Frame 20.0 5472 3648 1080/30p 23.8 12.1 2340 82
Canon 5D Mark III (⇒ lft | rgt) Full Frame 22.1 5760 3840 1080/30p 24 11.7 2293 81
Canon 1D C (⇒ lft | rgt) Full Frame 17.9 5184 3456 4K/24p - - - -
Canon 1D X (⇒ lft | rgt) Full Frame 17.9 5184 3456 1080/30p 23.8 11.8 2786 82
Canon 60D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.2 11.5 813 66
Canon 1D Mark IV (⇒ lft | rgt) APS-H 16.0 4896 3264 1080/30p 22.8 12.0 1320 74
Canon 5D Mark II (⇒ lft | rgt) Full Frame 21.0 5616 3744 1080/30p 23.7 11.9 1815 79
Canon 1D Mark III (⇒ lft | rgt) APS-H 10.1 3888 2592 no 22.7 11.7 1078 71
Canon 1Ds Mark II (⇒ lft | rgt) Full Frame 16.6 4992 3328 no 23.3 11.3 1480 74
Nikon D7100 (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 24.2 13.7 1256 83
Nikon D3X (⇒ lft | rgt) Full Frame 24.4 6048 4032 no 24.7 13.7 1992 88

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The 70D indeed provides for movie recording, while the 1Ds Mark III does not. The highest resolution format that the 70D can use is 1080/30p.

Feature comparison: Canon 1Ds Mark III vs Canon 70D

Apart from body and sensor, cameras can and do differ across a range of features. The 1Ds Mark III and the 70D 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 Mark III and Canon 70D along with similar information for a selection of comparators. 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 1Ds Mark III (⇒ rgt) optical YES 3.0 230 fixed no 8000 5.0 no no
Canon 70D (⇒ lft) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 80D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 1D X Mark II (⇒ lft | rgt) optical YES 3.2 1620 fixed YES 8000 16.0 no no
Canon G3 X (⇒ lft | rgt) no no 3.2 1620 tilting YES 2000 5.9 6.8 YES
Canon 7D II (⇒ lft | rgt) optical YES 3.0 1040 fixed no 8000 10.0 11 no
Canon 6D (⇒ lft | rgt) optical YES 3.0 1040 fixed no 4000 4.5 no no
Canon 5D Mark III (⇒ lft | rgt) optical YES 3.2 1040 fixed no 8000 6.0 no no
Canon 1D C (⇒ lft | rgt) optical YES 3.2 1040 fixed no 8000 14.0 no no
Canon 1D X (⇒ lft | rgt) optical YES 3.2 1040 fixed no 8000 14.0 no no
Canon 60D (⇒ lft | rgt) optical YES 3.0 1040 swivel no 8000 5.3 13 no
Canon 1D Mark IV (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 10.0 no no
Canon 5D Mark II (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 3.9 no no
Canon 1D Mark III (⇒ lft | rgt) optical YES 3.0 230 fixed no 8000 10.0 no no
Canon 1Ds Mark II (⇒ lft | rgt) optical YES 2.0 230 fixed no 8000 4.0 no no
Nikon D7100 (⇒ lft | rgt) optical YES 3.2 1229 fixed no 8000 6.0 12 no
Nikon D3X (⇒ lft | rgt) optical YES 3.0 922 fixed no 8000 5.0 no no

Both the 1Ds Mark III and the 70D have been discontinued, but can regularly be found used on eBay. The 1Ds Mark III was replaced by the Canon 1DX, while the 70D was followed by the Canon 80D.

Review summary: Canon 1Ds Mark III vs Canon 70D

So what is the bottom line? Is the Canon 1Ds Mark III better than the Canon 70D or vice versa? Below is a summary of the relative strengths of each of the two contestants.


Arguments in favor of the Canon EOS-1Ds Mark III:

  • Better image quality: Scores substantially higher (12 points) in the DXO overall assessment.
  • Richer colors: Generates images with noticeably better colors (1.5 bits more color depth).
  • Better low-light sensitivity: Requires less light for good images (0.8 stops ISO advantage).
  • Longer lasting: Can take more shots (1800 versus 920) on a single battery charge.
  • More heavily discounted: Has been available for much longer (launched in August 2007).

Advantages of the Canon EOS 70D:

  • Broader imaging potential: Can capture not only stills but also 1080/30p 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.
  • Faster burst: Shoots at higher frequency (7 vs 5 flaps/sec) to capture the decisive moment.
  • More compact: Is smaller (139x104mm vs 150x160mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 630g or 45 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 (85 percent cheaper at launch).
  • More modern: Reflects 5 years and 10 months of technical progress since the 1Ds Mark III launch.

If the number of relative strengths (bullet points above) is taken as a guide, the 70D is the clear winner of the contest (10 : 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.

1Ds Mark III 05:10 70D

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 1Ds Mark III or the 70D handle or perform in practice. 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 why expert reviews are important. The adjacent table relays the overall verdicts of several of the most popular 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
(year)
Launch
Price
(USD)
Street
Price
(amazon)
Used
Price
(ebay)
Canon 1Ds Mark III (⇒ rgt) - HiRec 4.5/5 - - 2007 7,999discont. check
Canon 70D (⇒ lft) HiRec 83/100 Gold 4.5/5 4.5/5 5/5 2013 1,199discont. check
Canon 80D (⇒ lft | rgt) HiRec 84/100 Silver 4.5/5 4.5/5 4.5/5 2016 1,199 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 G3 X (⇒ lft | rgt) Rec - 4.5/5 3.5/5 4/5 2015 999 latest check
Canon 7D II (⇒ lft | rgt) Rec 84/100 Silver 4/5 5/5 4.5/5 2014 1,799 latest check
Canon 6D (⇒ lft | rgt) HiRec 83/100 Silver 4.5/5 4.5/5 4.5/5 2012 2,099discont. check
Canon 5D Mark III (⇒ lft | rgt) HiRec 82/100 Gold 4.5/5 5/5 4.5/5 2012 3,499discont. check
Canon 1D C (⇒ lft | rgt) - - - - - 2012 14,999discont. check
Canon 1D X (⇒ lft | rgt) - - 4.5/5 4.5/5 4.5/5 2011 6,799discont. check
Canon 60D (⇒ lft | rgt) 87/100 Rec 79/100 Silver 4/5 5/5 4.5/5 2010 1,399discont. check
Canon 1D Mark IV (⇒ lft | rgt) - 89/100 Gold - 5/5 - 2009 4,999discont. check
Canon 5D Mark II (⇒ lft | rgt) 91/100 79/100 HiRec 4/5 5/5 - 2008 3,499discont. check
Canon 1D Mark III (⇒ lft | rgt) - - - reviewed - 2007 4,499discont. check
Canon 1Ds Mark II (⇒ lft | rgt) - HiRec - - - 2004 7,999discont. check
Nikon D7100 (⇒ lft | rgt) HiRec 85/100 Gold 4.5/5 5/5 4.5/5 2013 1,199discont. check
Nikon D3X (⇒ lft | rgt) - 86/100 4/5 5/5 5/5 2008 7,999discont. check

The review scores listed above should be treated with care, 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, 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 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 do not see the camera that you are looking for, please send me an email, and I will try to locate and add the respective data to the application.

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