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Canon 400D versus Canon 450D

The Canon EOS 400D (called Canon XTi in some regions) and the Canon EOS 450D (labelled Canon XSi in some countries) are two digital cameras that were announced, respectively, in August 2006 and January 2008. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. The 400D has a resolution of 10.1 megapixel, whereas the 450D provides 12.2 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 400D vs Canon 450D

The physical size and weight of the Canon 400D and the Canon 450D are illustrated in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. All width, height and depth 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 side – the 400D – represents the basis for the calculations across all the size and weight measures).

Compare Canon 400D vs Canon 450D
400D versus 450D top view
400D and 450D rear side

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 450D is notably larger (19 percent) than the Canon 400D. However, the 450D is markedly lighter (6 percent) than the 400D. In this context, it is worth noting that neither the 400D nor the 450D 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 400D gets 370 shots out of its NB-2LH battery, while the 450D can take 500 images on a single charge of its LP-E5 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 400D (⇒ rgt) 5.0 in 3.3 in 2.6 in 19.6 oz 370 no 2006 799discont. check
Canon 450D (⇒ lft) 5.1 in 3.9 in 2.4 in 18.5 oz 500 no 2008 799discont. check
Canon 750D (⇒ lft | rgt) 5.2 in 4.0 in 3.1 in 19.6 oz 440 no 2015 749discont. check
Canon 760D (⇒ lft | rgt) 5.2 in 4.0 in 3.1 in 19.9 oz 440 no 2015 849discont. check
Canon G1 X Mark II (⇒ lft | rgt) 4.6 in 2.9 in 2.6 in 19.5 oz 240 no 2014 799 latest check
Canon G1 X (⇒ lft | rgt) 4.6 in 3.2 in 2.6 in 18.8 oz 250 no 2012 799discont. check
Canon 650D (⇒ lft | rgt) 5.2 in 3.9 in 3.1 in 20.3 oz 440 no 2012 849discont. check
Canon 1100D (⇒ lft | rgt) 5.1 in 3.9 in 3.1 in 17.5 oz 700 no 2011 449discont. check
Canon 550D (⇒ lft | rgt) 5.1 in 3.9 in 2.4 in 18.7 oz 440 no 2010 699discont. check
Canon 500D (⇒ lft | rgt) 5.1 in 3.9 in 2.4 in 18.3 oz 400 no 2009 799discont. check
Canon 40D (⇒ lft | rgt) 5.7 in 4.3 in 2.9 in 29.0 oz 750 no 2007 1,299discont. check
Canon 350D (⇒ lft | rgt) 5.0 in 3.7 in 2.5 in 19.0 oz 400 no 2005 899discont. check
Canon 300D (⇒ lft | rgt) 5.6 in 3.9 in 2.8 in 22.9 oz 400 no 2003 899discont. 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 400D vs Canon 450D

The size of the imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and 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 tend to be more expensive and 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 400D and Canon 450D sensor measures

While the two cameras under review share the same sensor size, the 450D offers a higher resolution of 12.2 megapixel, compared with 10.1 MP of the 400D. This megapixel advantage translates into a 10 percent gain in linear resolution. On the other hand, these sensor specs imply that the 450D has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 5.19μm versus 5.71μm for the 400D). However, it should be noted that the 450D is a somewhat more recent model (by 1 year and 5 months) than the 400D, and its sensor might have benefitted from technological advances during this time that at least partly compensate for the smaller pixel size.

400D versus 450D MP

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 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 400D (⇒ rgt) APS-C 10.1 3888 2592 no 22.1 11.0 664 62
Canon 450D (⇒ lft) APS-C 12.2 4272 2848 no 21.9 10.8 692 61
Canon 750D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/60p 22.7 12.0 919 71
Canon 760D (⇒ lft | rgt) APS-C 24.0 6000 4000 1080/30p 22.6 12.0 915 70
Canon G1 X Mark II (⇒ lft | rgt) 1.5-inch 13.0 4160 3120 1080/30p 21.5 10.8 581 58
Canon G1 X (⇒ lft | rgt) 1.5-inch 14.2 4352 3264 1080/24p 21.7 10.8 644 60
Canon 650D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 21.7 11.2 722 62
Canon 1100D (⇒ lft | rgt) APS-C 12.2 4272 2848 720/30p 21.9 11.0 755 62
Canon 550D (⇒ lft | rgt) APS-C 17.9 5184 3456 1080/30p 22.1 11.5 784 66
Canon 500D (⇒ lft | rgt) APS-C 15.1 4752 3168 1080/20p 21.7 11.5 663 63
Canon 40D (⇒ lft | rgt) APS-C 10.1 3888 2592 no 22.1 11.3 703 64
Canon 350D (⇒ lft | rgt) APS-C 8.0 3456 2304 no 21.8 10.8 637 60
Canon 300D (⇒ lft | rgt) APS-C 6.3 3072 2048 no 21.0 10.8 544 55
The 450D offers Live View, so that it can project the live image that the sensor receives onto the rear screen for framing. The 400D lacks this capability. Both cameras are still-image focused and cannot record videos.

Feature comparison: Canon 400D vs Canon 450D

Apart from body and sensor, cameras can and do differ across a variety of features. The 400D and the 450D 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 400D, the Canon 450D, 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 400D (⇒ rgt) optical no 2.5 230 fixed no 4000 3.0 YES no
Canon 450D (⇒ lft) optical no 3.0 230 fixed no 4000 3.5 YES no
Canon 750D (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 12 no
Canon 760D (⇒ lft | rgt) optical YES 3.0 1040 swivel YES 4000 5.0 12 no
Canon G1 X Mark II (⇒ lft | rgt) no no 3.0 1040 tilting YES 4000 5.2 6.8 YES
Canon G1 X (⇒ lft | rgt) optical no 3.0 922 Swivel no 4000 1.9 7 YES
Canon 650D (⇒ lft | rgt) optical no 3.0 1040 swivel YES 4000 5.0 YES no
Canon 1100D (⇒ lft | rgt) optical no 2.7 230 fixed no 4000 3.0 9.2 no
Canon 550D (⇒ lft | rgt) optical no 3.0 1040 fixed no 4000 3.7 YES no
Canon 500D (⇒ lft | rgt) optical no 3.0 920 fixed no 4000 3.4 YES no
Canon 40D (⇒ lft | rgt) optical YES 3.0 230 fixed no 8000 6.5 12 no
Canon 350D (⇒ lft | rgt) optical no 1.8 115 fixed no 4000 3.0 YES no
Canon 300D (⇒ lft | rgt) optical no 1.8 118 fixed no 4000 2.5 YES no

Both the 400D and the 450D have been discontinued, but can regularly be found used on eBay. The 400D was replaced by the Canon 450D, while the 450D was followed by the Canon 500D.

Review summary: Canon 400D vs Canon 450D

So what is the bottom line? Is there a clear favorite between the Canon 400D and the Canon 450D? A synthesis of the relative strong points of each of the models is listed below.


Reasons to prefer the Canon EOS 400D:

  • More compact: Is smaller (127x84mm vs 129x98mm) and thus needs less room in the bag.
  • More heavily discounted: Has been on the market for longer (launched in August 2006).

Arguments in favor of the Canon EOS 450D:

  • More detail: Has more megapixels (12.2 vs 10.1MP), which boosts linear resolution by 10%.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
  • Faster burst: Shoots at higher frequency (3.5 vs 3 flaps/sec) to capture the decisive moment.
  • Longer lasting: Gets more shots (500 versus 370) out of a single battery charge.
  • More modern: Was introduced somewhat (1 year and 5 months) more recently.

If the count of individual advantages (bullet points above) is taken as a guide, the 450D emerges as the winner of the match-up (5 : 2 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.

400D 02:05 450D

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 400D and the 450D 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 where reviews by experts come in. The table below summarizes the assessments of some of the best known 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 400D (⇒ rgt) 85/100 HiRec HiRec reviewed 4.5/5 4/5 2006 799discont. check
Canon 450D (⇒ lft) 88/100 HiRec HiRec 4/5 5/5 4.5/5 2008 799discont. check
Canon 750D (⇒ lft | rgt) - 75/100 4.5/5 4.5/5 4.5/5 2015 749discont. check
Canon 760D (⇒ lft | rgt) Rec 77/100 Silver 4.5/5 4.5/5 4.5/5 2015 849discont. check
Canon G1 X Mark II (⇒ lft | rgt) Rec 77/100 Silver 4/5 4/5 4.5/5 2014 799 latest check
Canon G1 X (⇒ lft | rgt) 79/100 Rec 76/100 Silver 4/5 4/5 4.5/5 2012 799discont. check
Canon 650D (⇒ lft | rgt) HiRec 77/100 Silver 4.5/5 4.5/5 4.5/5 2012 849discont. check
Canon 1100D (⇒ lft | rgt) 80/100 69/100 4/5 4/5 4.5/5 2011 449discont. check
Canon 550D (⇒ lft | rgt) 88/100 HiRec 77/100 Gold 4/5 5/5 4.5/5 2010 699discont. check
Canon 500D (⇒ lft | rgt) 88/100 HiRec 74/100 HiRec 4.5/5 5/5 4.5/5 2009 799discont. check
Canon 40D (⇒ lft | rgt) 90/100 HiRec HiRec 4.5/5 reviewed 4.5/5 2007 1,299discont. check
Canon 350D (⇒ lft | rgt) 80/100 HiRec reviewed reviewed - 2005 899discont. check
Canon 300D (⇒ lft | rgt) - HiRec - reviewed - 2003 899discont. 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. 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 make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If you cannot find the camera you are interested in, please send me an email, and I will try to locate and add the respective data to the application.

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