Canon 450D vs SX40
The Canon EOS 450D (called Canon XSi in some regions) and the Canon PowerShot SX40 HS are two digital cameras that were revealed to the public, respectively, in January 2008 and September 2011. The 450D is a DSLR, while the SX40 is a fixed lens compact. The cameras are based on an APS-C (450D) and a 1/2.3-inch (SX40) sensor. The 450D has a resolution of 12.2 megapixels, whereas the SX40 provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 450D||Canon SX40|
|Digital single lens reflex||Fixed lens compact camera|
|Canon EF mount lenses||24-840mm f/2.7-5.8|
|12.2 MP, APS-C Sensor||12 MP, 1/2.3" Sensor|
|no Video||1080/24p Video|
|ISO 100-1,600||ISO 100-3,200|
|Optical viewfinder||Electronic viewfinder (202k dots)|
|3.0 LCD, 230k dots||2.7 LCD, 230k dots|
|Fixed screen (not touch-sensitive)||Swivel screen (not touch-sensitive)|
|3.5 shutter flaps per second||10.3 shutter flaps per second|
|500 shots per battery charge||380 shots per battery charge|
|129 x 98 x 62 mm, 524 g||123 x 92 x 108 mm, 600 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 450D and the Canon PowerShot SX40 HS? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
The side-by-side display below illustrates the physical size and weight of the Canon 450D and the Canon SX40. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon SX40 is notably smaller (10 percent) than the Canon 450D. In this context, it is worth noting that neither the 450D nor the SX40 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX40 has a lens built in, whereas the 450D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the 450D and their specifications in the Canon EF Lens Catalog.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
|Canon 450D||5.1 in||3.9 in||2.4 in||18.5 oz||500||n||Jan 2008||799|
|Canon SX40||4.8 in||3.6 in||4.3 in||21.2 oz||380||n||Sep 2011||429|
|Canon 750D||5.2 in||4.0 in||3.1 in||19.6 oz||440||n||Feb 2015||749|
|Canon 760D||5.2 in||4.0 in||3.1 in||19.9 oz||440||n||Feb 2015||649|
|Canon G1 X Mark II||4.6 in||2.9 in||2.6 in||19.5 oz||240||n||Feb 2014||799|
|Canon 650D||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849|
|Canon G1 X||4.6 in||3.2 in||2.6 in||18.8 oz||250||n||Jan 2012||799|
|Canon SX50||4.8 in||3.4 in||4.2 in||21.0 oz||315||n||Sep 2012||429|
|Canon 1100D||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449|
|Canon SX30||4.8 in||3.6 in||4.3 in||21.2 oz||370||n||Sep 2010||429|
|Canon SX20||4.8 in||3.5 in||3.4 in||21.2 oz||..||n||Aug 2009||399|
|Canon 500D||5.1 in||3.9 in||2.4 in||18.3 oz||400||n||Mar 2009||799|
|Canon 1000D||5.0 in||3.9 in||2.6 in||17.7 oz||500||n||Jun 2008||449|
|Canon 400D||5.0 in||3.3 in||2.6 in||19.6 oz||370||n||Aug 2006||799|
|Nikon D5000||5.0 in||4.1 in||3.1 in||20.8 oz||510||n||Apr 2009||749|
|Panasonic FZ150||4.9 in||3.2 in||3.6 in||18.6 oz||410||n||Aug 2011||499|
|Panasonic FZ100||4.9 in||3.2 in||3.6 in||19.0 oz||410||n||Jul 2010||499|
Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
(1) Number of images that can be taken on a full battery charge according to the CIPA-standard; (2) Official announcement.
The price is, of course, an important factor in any camera decision. 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 SX40 was launched at a lower price than the 450D, despite having a lens built in. 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.
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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 450D features an APS-C sensor and the Canon SX40 a 1/2.3-inch sensor. The sensor area in the SX40 is 91 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 5.6. The sensor in the 450D has a native 3:2 aspect ratio, while the one in the SX40 offers a 4:3 aspect.
With 12.2MP, the 450D offers a slightly higher resolution than the SX40 (12MP), but the 450D nevertheless has larger individual pixels (pixel pitch of 5.19μm versus 1.53μm for the SX40) due to its larger sensor. However, the SX40 is a much more recent model (by 3 years and 7 months) than the 450D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the SX40 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The Canon EOS 450D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Canon PowerShot SX40 HS are ISO 100 to ISO 3200 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Canon G1 X Mark II||1.5-inch||13.0||4160||3120||1080/30p||21.5||10.8||581||58|
|Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
Many modern cameras cannot only take still pictures, but also record videos. The SX40 indeed provides for movie recording, while the 450D does not. The highest resolution format that the SX40 can use is 1080/24p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the SX40 has an electronic viewfinder (202k dots), while the 450D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The adjacent table lists some of the other core features of the Canon 450D and Canon SX40 along with similar information for a selection of comparators.
|Canon G1 X Mark II||optional||n||3.0||1040||tilting||Y||1/4000s||5.2||Y||Y|
|Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y|
The 450D writes its imaging data to SDHC cards, while the SX40 uses SDXC cards.
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon EOS 450D and Canon PowerShot SX40 HS and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
|Canon G1 X Mark II||Y||stereo||mono||-||-||mini||2.0||Y||Y||-|
|Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-|
Both the 450D and the SX40 have been discontinued, but can regularly be found used on eBay. The 450D was replaced by the Canon 500D, while the SX40 was followed by the Canon SX50. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Canon website.
So what is the bottom line? Is the Canon 450D better than the Canon SX40 or vice versa? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS 450D:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/3200s) to freeze action.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (500 versus 380) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in January 2008).
Arguments in favor of the Canon PowerShot SX40 HS:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Broader imaging potential: Can capture not only stills but also 1080/24p video.
- More framing info: Has an electronic viewfinder that displays shooting data.
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- Faster burst: Shoots at higher frequency (10.3 vs 3.5 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with an integrated lens, while the 450D requires a separate lens.
- More compact: Is smaller (123x92mm vs 129x98mm) and will fit more readily into a bag.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 3 years and 7 months of technical progress since the 450D launch.
If the count of relative strengths (bullet points above) is taken as a measure, the 450D comes out slightly ahead of the SX40 (11 : 10 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. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon 450D and the Canon SX40 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it says little about, for example, the shooting experience and imaging performance of the 450D and the SX40 in practical situations. 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 table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
|Canon 450D||+ +||+ +||4/5||5/5||4.5/5||Jan 2008||799|
|Canon SX40||+||..||4.5/5||5/5||4/5||Sep 2011||429|
|Canon 750D||..||75/100||4.5/5||4.5/5||4.5/5||Feb 2015||749|
|Canon 760D||+||77/100||4.5/5||4.5/5||4.5/5||Feb 2015||649|
|Canon G1 X Mark II||+||77/100||4/5||4/5||4.5/5||Feb 2014||799|
|Canon 650D||+ +||77/100||4.5/5||4.5/5||4.5/5||Jun 2012||849|
|Canon G1 X||+||76/100||4/5||4/5||4.5/5||Jan 2012||799|
|Canon SX50||+ +||72/100||4.5/5||..||4.5/5||Sep 2012||429|
|Canon 1100D||80/100||69/100||4/5||4/5||4.5/5||Feb 2011||449|
|Canon SX30||+ +||..||3.5/5||4.5/5||4/5||Sep 2010||429|
|Canon SX20||+ +||73/100||..||4/5||4/5||Aug 2009||399|
|Canon 500D||+ +||74/100||4.5/5||5/5||4.5/5||Mar 2009||799|
|Canon 1000D||82/100||+ +||3.5/5||4/5||4.5/5||Jun 2008||449|
|Canon 400D||+ +||+ +||o||4.5/5||4/5||Aug 2006||799|
|Nikon D5000||+ +||75/100||4/5||5/5||4.5/5||Apr 2009||749|
|Panasonic FZ150||+ +||76/100||4/5||5/5||4.5/5||Aug 2011||499|
|Panasonic FZ100||+||..||4.5/5||..||4.5/5||Jul 2010||499|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
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 use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 450D vs Canon 500D
- Canon 450D vs Canon 6D
- Canon 450D vs Fujifilm GFX 50S
- Canon 450D vs Fujifilm X70
- Canon 450D vs Hasselblad X1D II
- Canon 450D vs Leica S Typ 007
- Canon 450D vs Nikon B600
- Canon 450D vs Nikon D3000
- Canon 450D vs Olympus E-M5
- Canon 450D vs Olympus E-M5 III
- Canon 450D vs Pentax Q
- Canon 450D vs Sony A6100
Specifications: Canon 450D vs Canon SX40
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
|Camera Model||Canon 450D||Canon SX40|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||24-840mm f/2.7-5.8|
|Launch Date||January 2008||September 2011|
|Launch Price||USD 799||USD 429|
|Sensor Specs||Canon 450D||Canon SX40|
|Sensor Format||APS-C Sensor||1/2.3" Sensor|
|Sensor Size||22.2 x 14.8 mm||6.17 x 4.55 mm|
|Sensor Area||328.56 mm2||28.0735 mm2|
|Sensor Diagonal||26.7 mm||7.7 mm|
|Sensor Resolution||12.2 Megapixels||12 Megapixels|
|Image Resolution||4272 x 2848 pixels||4000 x 3000 pixels|
|Pixel Pitch||5.19 μm||1.53 μm|
|Pixel Density||3.70 MP/cm2||42.74 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||1080/24p Video|
|ISO Setting||100 - 1,600 ISO||100 - 3,200 ISO|
|DXO Sensor Quality (score)||61||..|
|DXO Color Depth (bits)||21.9||..|
|DXO Dynamic Range (EV)||10.8||..|
|DXO Low Light (ISO)||692||..|
|Screen Specs||Canon 450D||Canon SX40|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||202k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0inch||2.7inch|
|LCD Resolution||230k dots||230k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Shooting Specs||Canon 450D||Canon SX40|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||3.5 shutter flaps/s||10.3 shutter flaps/s|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||SDHC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||no||no|
|Connectivity Specs||Canon 450D||Canon SX40|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||YES HDMI|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Canon 450D||Canon SX40|
|Battery Life (CIPA)||500 shots per charge||380 shots per charge|
129 x 98 x 62 mm
(5.1 x 3.9 x 2.4 in)
123 x 92 x 108 mm
(4.8 x 3.6 x 4.3 in)
|Camera Weight||524 g (18.5 oz)||600 g (21.2 oz)|
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