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Canon 10D versus Canon 40D

The Canon EOS 10D and the Canon EOS 40D are two enthusiast cameras that were officially introduced, respectively, in February 2003 and August 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 10D has a resolution of 6.3 megapixel, whereas the 40D provides 10.1 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 10D vs Canon 40D

The side-by-side display below illustrates the physical size and weight of the Canon 10D and the Canon 40D. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size 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 – the 10D – represents the basis or 100 percent across all the size and weight measures).

Compare Canon 10D vs Canon 40D
Compare 10D versus 40D top
Compare 10D and 40D rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 40D is somewhat smaller (2 percent) than the Canon 10D. Moreover, the 40D is slightly lighter (3 percent) than the 10D. In this context, it is worth noting that neither the 10D nor the 40D 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. In this particular case, both cameras feature the same lens mount, so that they can use the same lenses. You can find an overview of suitable optics in the Canon EF Lens Catalog.

Concerning battery life, the 10D gets 500 shots out of its BP-511 battery, while the 40D can take 750 images on a single charge of its BP-511A power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 10D» 5.9 in 4.2 in 3.0 in 30.0 oz 500 n Feb 2003 1,999- i Canon 10D
Canon 40D« 5.7 in 4.3 in 2.9 in 29.0 oz 750 n Aug 2007 1,299- i Canon 40D
Canon 7D II« » 5.9 in 4.4 in 3.1 in 32.1 oz 670 Y Sep 2014 1,799 i i Canon 7D II
Canon 70D« » 5.5 in 4.1 in 3.1 in 26.6 oz 920 Y Jul 2013 1,199- i Canon 70D
Canon T5i« » 5.2 in 3.9 in 3.1 in 20.5 oz 440 n Mar 2013 649- i Canon T5i
Canon 7D« » 5.8 in 4.4 in 2.9 in 30.3 oz 800 Y Sep 2009 1,699- i Canon 7D
Canon 50D« » 5.7 in 4.3 in 2.9 in 29.0 oz 800 Y Aug 2008 1,299- i Canon 50D
Canon XSi« » 5.1 in 3.9 in 2.4 in 18.5 oz 500 n Jan 2008 799- i Canon XSi
Canon 30D« » 5.7 in 4.2 in 2.9 in 27.7 oz 750 n Feb 2006 1,399- i Canon 30D
Canon 20D« » 5.7 in 4.2 in 2.8 in 27.2 oz 700 n Aug 2004 1,499- i Canon 20D
Canon Rebel« » 5.6 in 3.9 in 2.8 in 22.9 oz 400 n Aug 2003 899- i Canon Rebel
Canon D60« » 5.9 in 4.2 in 3.0 in 30.2 oz 620 n Feb 2002 2,999- i Canon D60
Nikon D90« » 5.2 in 4.1 in 3.0 in 24.8 oz 850 n Aug 2008 1,299- i Nikon D90
Nikon D100« » 5.7 in 4.6 in 3.2 in 27.5 oz 370 n Feb 2002 1,999- i Nikon D100

Any camera purchase will naturally be influenced heavily by the price. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The 40D was launched at a markedly lower price (by 35 percent) than the 10D, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

 

Sensor comparison: Canon 10D vs Canon 40D

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

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the 40D is 3 percent smaller. They nevertheless have the same format factor of 1.6. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the 40D uses a more advanced image processing engine (DIGIC 3) than the 10D (DIGIC), with benefits for noise reduction, color accuracy, and processing speed.

Canon 10D and Canon 40D sensor measures

Despite having a slightly smaller sensor, the 40D offers a higher resolution of 10.1 megapixel, compared with 6.3 MP of the 10D. 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 5.73μm versus 7.38μm for the 10D). However, it should be noted that the 40D is much more recent (by 4 years and 5 months) than the 10D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

10D versus 40D MP

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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. Of the two cameras under consideration, the 40D has a markedly higher DXO score than the 10D (overall score 7 points higher), which will translate into better image quality. The advantage is based on 1 bits higher color depth, 0.4 EV in additional dynamic range, and 0.3 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
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
Canon 10D» APS-C 6.3 3072 2048-21.110.957157Canon 10D
Canon 40D« APS-C 10.1 3888 2592-22.111.370364Canon 40D
Canon 7D II« » APS-C 20.0 5472 36481080/60p22.411.8108270Canon 7D II
Canon 70D« » APS-C 20.0 5472 36481080/30p22.511.692668Canon 70D
Canon T5i« » APS-C 17.9 5184 34561080/30p21.711.268161Canon T5i
Canon 7D« » APS-C 17.9 5184 34561080/30p22.011.785466Canon 7D
Canon 50D« » APS-C 15.1 4752 3168-21.811.469663Canon 50D
Canon XSi« » APS-C 12.2 4272 2848-21.910.869261Canon XSi
Canon 30D« » APS-C 8.2 3504 2336-21.510.873659Canon 30D
Canon 20D« » APS-C 8.2 3504 2336-21.911.072162Canon 20D
Canon Rebel« » APS-C 6.3 3072 2048-21.010.854455Canon Rebel
Canon D60« » APS-C 6.3 3072 2048-----Canon D60
Nikon D90« » APS-C 12.2 4288 2848720/24p22.712.597773Nikon D90
Nikon D100« » APS-C 6.0 3008 2000-----Nikon D100
The 40D offers Live View, so that it can project the live image that the sensor receives onto the rear screen for framing. The 10D lacks this capability. Both cameras are still-image focused and cannot record videos.
 

Feature comparison: Canon 10D vs Canon 40D

Apart from body and sensor, cameras can and do differ across a range of features. The 10D and the 40D 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 10D and Canon 40D 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
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 10D»optical Y 1.8 118 fixed n 4000 3.0 Y n Canon 10D
Canon 40D«optical Y 3.0 230 fixed n 8000 6.5 Y n Canon 40D
Canon 7D II« »optical Y 3.0 1040 fixed n 8000 10.0 Y n Canon 7D II
Canon 70D« »optical Y 3.0 1040 swivel Y 8000 7.0 Y n Canon 70D
Canon T5i« »optical n 3.0 1040 swivel Y 4000 5.0 Y n Canon T5i
Canon 7D« »optical Y 3.0 920 fixed n 8000 8.0 Y n Canon 7D
Canon 50D« »optical Y 3.0 920 fixed n 8000 6.3 Y n Canon 50D
Canon XSi« »optical n 3.0 230 fixed n 4000 3.5 Y n Canon XSi
Canon 30D« »optical Y 2.5 230 fixed n 8000 5.0 Y n Canon 30D
Canon 20D« »optical Y 1.8 118 fixed n 8000 5.0 Y n Canon 20D
Canon Rebel« »optical n 1.8 118 fixed n 4000 2.5 Y n Canon Rebel
Canon D60« »optical Y 1.8 114 fixed n 4000 3.0 Y n Canon D60
Nikon D90« »optical Y 3.0 920 fixed n 4000 4.5 Y n Nikon D90
Nikon D100« »optical Y 1.8 118 fixed n 4000 3.0 Y n Nikon D100

Both the 10D and the 40D have been discontinued, but can regularly be found used on eBay. The 10D was replaced by the Canon 20D, while the 40D was followed by the Canon 50D.

Review summary: Canon 10D vs Canon 40D

So how do things add up? Which of the two cameras – the Canon 10D or the Canon 40D – has the upper hand? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Canon EOS 10D:

  • More heavily discounted: Has been available for much longer (launched in February 2003).


Advantages of the Canon EOS 40D:

  • More detail: Has more megapixels (10.1 vs 6.3MP), which boosts linear resolution by 27%.
  • Better image quality: Scores markedly higher (7 points) in the DXO overall evaluation.
  • Better jpgs: Has a more modern image processing engine (DIGIC 3 vs DIGIC).
  • Larger screen: Has a bigger rear LCD (3.0" vs 1.8") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (230k vs 118k dots).
  • Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
  • Faster burst: Shoots at higher frequency (6.5 vs 3 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (750 versus 500) out of a single battery charge.
  • More affordable: Was introduced into a lower priced category (35 percent cheaper at launch).
  • More modern: Reflects 4 years and 5 months of technical progress since the 10D launch.

If the count of relative strengths (bullet points above) is taken as a measure, the 40D is the clear winner of the contest (10 : 1 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.

10D 01:10 40D

In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 10D or the 40D. 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 (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 10D»-HiRec-rev- Feb 2003 1,999- i Canon 10D
Canon 40D«HiRecHiRec4.5/5rev4.5/5 Aug 2007 1,299- i Canon 40D
Canon 7D II« »Rec84/1004/55/54.5/5 Sep 2014 1,799 i i Canon 7D II
Canon 70D« »HiRec83/1004.5/54.5/55/5 Jul 2013 1,199- i Canon 70D
Canon T5i« »-76/1004.5/54.5/54.5/5 Mar 2013 649- i Canon T5i
Canon 7D« »HiRec84/1004.5/55/54.5/5 Sep 2009 1,699- i Canon 7D
Canon 50D« »HiRecHiRec4.5/55/54.5/5 Aug 2008 1,299- i Canon 50D
Canon XSi« »HiRecHiRec4/55/54.5/5 Jan 2008 799- i Canon XSi
Canon 30D« »HiRecHiRecrevrev- Feb 2006 1,399- i Canon 30D
Canon 20D« »-HiRec-rev- Aug 2004 1,499- i Canon 20D
Canon Rebel« »-HiRec-rev- Aug 2003 899- i Canon Rebel
Canon D60« »-HiRecrev-- Feb 2002 2,999- i Canon D60
Nikon D90« »HiRecHiRec4/55/54.5/5 Aug 2008 1,299- i Nikon D90
Nikon D100« »-HiRecrevrev- Feb 2002 1,999- i Nikon D100

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. Thus, a score needs to be put into the context of the launch date and the launch price 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? In case you would like to check on the differences and similarities of other camera models, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you do not see the camera that you are looking for, please contact me, and I will try to add information on that model to the database.

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