Canon 400D versus Canon 40D
The Canon EOS 400D (called Canon XTi in some regions) and the Canon EOS 40D are two digital cameras that were announced, respectively, in August 2006 and August 2007. Both are DSLR (Digital Single Lens Reflex) cameras that are equipped with an APS-C sensor. Both cameras offer a resolution of 10.1 megapixel. 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 40D
The side-by-side display below illustrates the physical size and weight of the Canon 400D and the Canon 40D. Three consecutive views from the front, the top, and the rear side are shown. 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 side – the 400D – represents the basis for the calculations across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon 40D is considerably larger (48 percent) than the Canon 400D. Moreover, the 40D is substantially heavier (48 percent) than the 400D. In this context, it is worth noting that neither the 400D 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.
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
|Canon 400D (⇒ rgt)||5.0 in||3.3 in||2.6 in||19.6 oz||370||no||2006||799||discont.||check|
|Canon 40D (⇒ lft)||5.7 in||4.3 in||2.9 in||29.0 oz||750||no||2007||1,299||discont.||check|
|Canon 750D (⇒ lft | rgt)||5.2 in||4.0 in||3.1 in||19.6 oz||440||no||2015||749||discont.||check|
|Canon 760D (⇒ lft | rgt)||5.2 in||4.0 in||3.1 in||19.9 oz||440||no||2015||849||discont.||check|
|Canon 650D (⇒ lft | rgt)||5.2 in||3.9 in||3.1 in||20.3 oz||440||no||2012||849||discont.||check|
|Canon 1100D (⇒ lft | rgt)||5.1 in||3.9 in||3.1 in||17.5 oz||700||no||2011||449||discont.||check|
|Canon 550D (⇒ lft | rgt)||5.1 in||3.9 in||2.4 in||18.7 oz||440||no||2010||699||discont.||check|
|Canon 500D (⇒ lft | rgt)||5.1 in||3.9 in||2.4 in||18.3 oz||400||no||2009||799||discont.||check|
|Canon 50D (⇒ lft | rgt)||5.7 in||4.3 in||2.9 in||29.0 oz||800||YES||2008||1,299||discont.||check|
|Canon 450D (⇒ lft | rgt)||5.1 in||3.9 in||2.4 in||18.5 oz||500||no||2008||799||discont.||check|
|Canon XSi (⇒ lft | rgt)||5.1 in||3.9 in||2.4 in||18.5 oz||500||no||2008||799||discont.||check|
|Canon 30D (⇒ lft | rgt)||5.7 in||4.2 in||2.9 in||27.7 oz||750||no||2006||1,399||discont.||check|
|Canon XTi (⇒ lft | rgt)||5.0 in||3.3 in||2.6 in||19.6 oz||370||no||2006||799||discont.||check|
|Canon 350D (⇒ lft | rgt)||5.0 in||3.7 in||2.5 in||19.0 oz||400||no||2005||899||discont.||check|
|Canon 300D (⇒ lft | rgt)||5.6 in||3.9 in||2.8 in||22.9 oz||400||no||2003||899||discont.||check|
|Nikon D90 (⇒ lft | rgt)||5.2 in||4.1 in||3.0 in||24.8 oz||850||no||2008||1,299||discont.||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 400D was launched at a markedly lower price (by 38 percent) than the 40D, 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 400D 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 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 associated with larger, more expensive camera bodies 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 1 percent bigger. 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.
Even though the 40D has a slightly larger sensor, both cameras offer the same resolution of 10.1 megapixel. This implies that the 40D has a lower pixel density and marginally larger individual pixels (with a pixel pitch of 5.73μm versus 5.71μm for the 400D), which gives it a potential advantage in terms of light gathering capacity. In addition, the 40D is a somewhat more recent model (by 11 months) than the 400D, and its sensor might have benefitted from technological advances during this time.
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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Canon 400D (⇒ rgt)||APS-C||10.1||3888||2592||no||22.1||11.0||664||62|
|Canon 40D (⇒ lft)||APS-C||10.1||3888||2592||no||22.1||11.3||703||64|
|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 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 50D (⇒ lft | rgt)||APS-C||15.1||4752||3168||no||21.8||11.4||696||63|
|Canon 450D (⇒ lft | rgt)||APS-C||12.2||4272||2848||no||21.9||10.8||692||61|
|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 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|
|Nikon D90 (⇒ lft | rgt)||APS-C||12.2||4288||2848||720/24p||22.7||12.5||977||73|
Feature comparison: Canon 400D vs Canon 40D
Apart from body and sensor, cameras can and do differ across a variety of features. The 400D 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 following table reports on some other key feature differences and similarities of the Canon 400D, the Canon 40D, and comparable cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Canon 400D (⇒ rgt)||optical||no||2.5||230||fixed||no||4000||3.0||YES||no|
|Canon 40D (⇒ lft)||optical||YES||3.0||230||fixed||no||8000||6.5||12||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 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 50D (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||8000||6.3||13||no|
|Canon 450D (⇒ lft | rgt)||optical||no||3.0||230||fixed||no||4000||3.5||YES||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 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|
|Nikon D90 (⇒ lft | rgt)||optical||YES||3.0||920||fixed||no||4000||4.5||17||no|
Both the 400D and the 40D have been discontinued, but can regularly be found used on eBay. The 400D was replaced by the Canon 450D, while the 40D was followed by the Canon 50D.
Review summary: Canon 400D vs Canon 40D
So how do things add up? Is the Canon 400D better than the Canon 40D or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon EOS 400D:
- More compact: Is smaller (127x84mm vs 146x108mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 266g or 32 percent) and hence easier to carry around.
- More affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in August 2006).
Arguments in favor of the Canon EOS 40D:
- Easier setting verification: Has a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- 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 370) out of a single battery charge.
- More modern: Was introduced somewhat (11 months) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the 40D emerges as the winner of the match-up (6 : 4 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the handling experience and imaging performance when actually working with the 400D or the 40D. 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 hands-on reviews by experts 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.
|Canon 400D (⇒ rgt)||85/100 HiRec||HiRec||reviewed||4.5/5||4/5||2006||799||discont.||check|
|Canon 40D (⇒ lft)||90/100 HiRec||HiRec||4.5/5||reviewed||4.5/5||2007||1,299||discont.||check|
|Canon 750D (⇒ lft | rgt)||-||75/100||4.5/5||4.5/5||4.5/5||2015||749||discont.||check|
|Canon 760D (⇒ lft | rgt)||Rec||77/100 Silver||4.5/5||4.5/5||4.5/5||2015||849||discont.||check|
|Canon 650D (⇒ lft | rgt)||HiRec||77/100 Silver||4.5/5||4.5/5||4.5/5||2012||849||discont.||check|
|Canon 1100D (⇒ lft | rgt)||80/100||69/100||4/5||4/5||4.5/5||2011||449||discont.||check|
|Canon 550D (⇒ lft | rgt)||88/100 HiRec||77/100 Gold||4/5||5/5||4.5/5||2010||699||discont.||check|
|Canon 500D (⇒ lft | rgt)||88/100 HiRec||74/100 HiRec||4.5/5||5/5||4.5/5||2009||799||discont.||check|
|Canon 50D (⇒ lft | rgt)||90/100 HiRec||HiRec||4.5/5||5/5||4.5/5||2008||1,299||discont.||check|
|Canon 450D (⇒ lft | rgt)||88/100 HiRec||HiRec||4/5||5/5||4.5/5||2008||799||discont.||check|
|Canon XSi (⇒ lft | rgt)||88/100 HiRec||HiRec||4/5||5/5||4.5/5||2008||799||discont.||check|
|Canon 30D (⇒ lft | rgt)||87/100 HiRec||HiRec||reviewed||reviewed||-||2006||1,399||discont.||check|
|Canon XTi (⇒ lft | rgt)||85/100 HiRec||HiRec||reviewed||4.5/5||4/5||2006||799||discont.||check|
|Canon 350D (⇒ lft | rgt)||80/100||HiRec||reviewed||reviewed||-||2005||899||discont.||check|
|Canon 300D (⇒ lft | rgt)||-||HiRec||-||reviewed||-||2003||899||discont.||check|
|Nikon D90 (⇒ lft | rgt)||89/100 HiRec||HiRec||4/5||5/5||4.5/5||2008||1,299||discont.||check|
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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