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Canon 40D versus Canon 50D

The Canon EOS 40D and the Canon EOS 50D are two enthusiast cameras that were announced, respectively, in August 2007 and August 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 40D has a resolution of 10.1 megapixel, whereas the 50D provides 15.1 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 40D vs Canon 50D

The side-by-side display below illustrates the physical size and weight of the Canon 40D and the Canon 50D. Three consecutive perspectives from the front, the top, and the back are presented. All width, height and depth measures 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 40D – represents the basis or 100 percent across all the size and weight measures).

Compare Canon 40D vs Canon 50D
40D versus 50D top view
40D and 50D rear side
Body view (40D on the left)

In this particular case, the Canon 40D and the Canon 50D have exactly the same width and height, and, thus, have identically-sized bodies. Moreover, the two cameras also share the same weight. It is noteworthy in this context that the 50D is splash and dust-proof, while the 40D 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. 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.

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 40D (⇒ rgt) 146 mm 108 mm 74 mm 822 g 750 no 2007 1,299discont. check
Canon 50D (⇒ lft) 146 mm 108 mm 74 mm 822 g 800 YES 2008 1,299discont. check
Canon 7D II (⇒ lft | rgt) 149 mm 112 mm 78 mm 910 g 670 YES 2014 1,799 latest check
Canon 70D (⇒ lft | rgt) 139 mm 104 mm 79 mm 755 g 920 YES 2013 1,199discont. check
Canon 60D (⇒ lft | rgt) 145 mm 106 mm 79 mm 755 g 1100 YES 2010 1,399discont. check
Canon 7D (⇒ lft | rgt) 148 mm 111 mm 74 mm 860 g 800 YES 2009 1,699discont. check
Canon XSi (⇒ lft | rgt) 129 mm 98 mm 62 mm 524 g 500 no 2008 799discont. check
Canon 30D (⇒ lft | rgt) 144 mm 106 mm 74 mm 785 g 750 no 2006 1,399discont. check
Canon XTi (⇒ lft | rgt) 127 mm 84 mm 65 mm 556 g 370 no 2006 799discont. check
Canon 20D (⇒ lft | rgt) 144 mm 106 mm 72 mm 770 g 700 no 2004 1,499discont. check
Canon 10D (⇒ lft | rgt) 150 mm 107 mm 75 mm 850 g 500 no 2003 1,999discont. check
Nikon D90 (⇒ lft | rgt) 132 mm 103 mm 77 mm 703 g 850 no 2008 1,299discont. check
Olympus E-30 (⇒ lft | rgt) 142 mm 108 mm 75 mm 701 g 750 no 2008 1,299discont. 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 two cameras under review were launched at the same price and fall into the same 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 40D vs Canon 50D

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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon 40D and Canon 50D sensor measures
Sensor size

While the two cameras under review share the same sensor size, the 50D offers a higher resolution of 15.1 megapixel, compared with 10.1 MP of the 40D. This megapixel advantage translates into a 22 percent gain in linear resolution. On the other hand, these sensor specs imply that the 50D has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 4.69μm versus 5.73μm for the 40D). However, it should be noted that the 50D is a somewhat more recent model (by 1 year) than the 40D, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.

40D versus 50D MP
Sensor resolution

For most cameras, data on sensor performance has been reported by DXO Mark. 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. The Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar image quality. 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 40D (⇒ rgt) APS-C 10.1 3888 2592 no 22.1 11.3 703 64
Canon 50D (⇒ lft) APS-C 15.1 4752 3168 no 21.8 11.4 696 63
Canon 7D II (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/60p 22.4 11.8 1082 70
Canon 70D (⇒ lft | rgt) APS-C 20.0 5472 3648 1080/30p 22.5 11.6 926 68
Canon 60D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.2 11.5 813 66
Canon 7D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.0 11.7 854 66
Canon XSi (⇒ lft | rgt) APS-C 12.2 4272 2848 no 21.9 10.8 692 61
Canon 30D (⇒ lft | rgt) APS-C 8.2 3504 2336 no 21.5 10.8 736 59
Canon XTi (⇒ lft | rgt) APS-C 10.1 3888 2592 no 22.1 11.0 664 62
Canon 20D (⇒ lft | rgt) APS-C 8.2 3504 2336 no 21.9 11.0 721 62
Canon 10D (⇒ lft | rgt) APS-C 6.3 3072 2048 no 21.1 10.9 571 57
Nikon D90 (⇒ lft | rgt) APS-C 12.2 4288 2848 720/24p 22.7 12.5 977 73
Olympus E-30 (⇒ lft | rgt) Four Thirds 12.2 4032 3024 no 21.3 10.4 530 55
Both the 40D and the 50D offer Live View, so that they make it possible to use the rear screen for framing. Both cameras are still-image focused and cannot record videos.

Feature comparison: Canon 40D vs Canon 50D

Apart from body and sensor, cameras can and do differ across a range of features. The 40D and the 50D 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 following table reports on some other key feature differences and similarities of the Canon 40D, the Canon 50D, and comparable 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
(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 40D (⇒ rgt) optical YES 3.0 230 fixed no 8000 6.5 12 no
Canon 50D (⇒ lft) optical YES 3.0 920 fixed no 8000 6.3 13 no
Canon 7D II (⇒ lft | rgt) optical YES 3.0 1040 fixed no 8000 10.0 11 no
Canon 70D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 8000 7.0 12 no
Canon 60D (⇒ lft | rgt) optical YES 3.0 1040 swivel no 8000 5.3 13 no
Canon 7D (⇒ lft | rgt) optical YES 3.0 920 fixed no 8000 8.0 12 no
Canon XSi (⇒ lft | rgt) optical no 3.0 230 fixed no 4000 3.5 13 no
Canon 30D (⇒ lft | rgt) optical YES 2.5 230 fixed no 8000 5.0 13 no
Canon XTi (⇒ lft | rgt) optical no 2.5 230 fixed no 4000 3.0 13 no
Canon 20D (⇒ lft | rgt) optical YES 1.8 118 fixed no 8000 5.0 13 no
Canon 10D (⇒ lft | rgt) optical YES 1.8 118 fixed no 4000 3.0 13 no
Nikon D90 (⇒ lft | rgt) optical YES 3.0 920 fixed no 4000 4.5 17 no
Olympus E-30 (⇒ lft | rgt) optical YES 2.7 230 swivel no 8000 5.0 13 YES

Both the 40D and the 50D have been discontinued, but can regularly be found used on eBay. The 40D was replaced by the Canon 50D, while the 50D was followed by the Canon 60D.

Review summary: Canon 40D vs Canon 50D

So what is the bottom line? Is there a clear favorite between the Canon 40D and the Canon 50D? The listing below highlights the relative strengths of the two models.


Arguments in favor of the Canon EOS 40D:

  • More heavily discounted: Has been on the market for longer (launched in August 2007).

Reasons to prefer the Canon EOS 50D:

  • More detail: Has more megapixels (15.1 vs 10.1MP), which boosts linear resolution by 22%.
  • More detailed LCD: Has a higher resolution rear screen (920k vs 230k dots).
  • Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
  • More modern: Was introduced somewhat (1 year) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the 50D emerges as the winner of the match-up (4 : 1 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.

40D 01:04 50D

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 40D or the 50D. 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 where reviews by experts come in. The table below summarizes the assessments of some of the best known camera review sites. The full reviews are available, 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 40D (⇒ rgt) 90/100 HiRec HiRec 4.5/5 reviewed 4.5/5 2007 1,299discont. check
Canon 50D (⇒ lft) 90/100 HiRec HiRec 4.5/5 5/5 4.5/5 2008 1,299discont. check
Canon 7D II (⇒ lft | rgt) Rec 84/100 Silver 4/5 5/5 4.5/5 2014 1,799 latest check
Canon 70D (⇒ lft | rgt) HiRec 83/100 Gold 4.5/5 4.5/5 5/5 2013 1,199discont. check
Canon 60D (⇒ lft | rgt) 87/100 Rec 79/100 Silver 4/5 5/5 4.5/5 2010 1,399discont. check
Canon 7D (⇒ lft | rgt) 93/100 HiRec 84/100 4.5/5 5/5 4.5/5 2009 1,699discont. check
Canon XSi (⇒ lft | rgt) 88/100 HiRec HiRec 4/5 5/5 4.5/5 2008 799discont. check
Canon 30D (⇒ lft | rgt) 87/100 HiRec HiRec reviewed reviewed - 2006 1,399discont. check
Canon XTi (⇒ lft | rgt) 85/100 HiRec HiRec reviewed 4.5/5 4/5 2006 799discont. check
Canon 20D (⇒ lft | rgt) - HiRec - reviewed - 2004 1,499discont. check
Canon 10D (⇒ lft | rgt) - HiRec - reviewed - 2003 1,999discont. check
Nikon D90 (⇒ lft | rgt) 89/100 HiRec HiRec 4/5 5/5 4.5/5 2008 1,299discont. check
Olympus E-30 (⇒ lft | rgt) - 71/100 HiRec 4.5/5 - 4/5 2008 1,299discont. check

The review scores listed above should be treated with care, though. The ratings are only valid when refering to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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? 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 do not see the camera that you are looking for, please contact me, and I will try to update the database with the necessary infos.

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