Canon 400D vs SX730
The Canon EOS 400D (called Canon XTi in some regions) and the Canon PowerShot SX730 HS are two digital cameras that were officially introduced, respectively, in August 2006 and April 2017. The 400D is a DSLR, while the SX730 is a fixed lens compact. The cameras are based on an APS-C (400D) and a 1/2.3-inch (SX730) sensor. The 400D has a resolution of 10.1 megapixels, whereas the SX730 provides 20.2 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 400D and the Canon PowerShot SX730 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 400D and the Canon SX730. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.
The SX730 can be obtained in two different colors (black, silver), while the 400D is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Canon SX730 is considerably smaller (34 percent) than the Canon 400D. In this context, it is worth noting that neither the 400D nor the SX730 are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX730 has a lens built in, whereas the 400D 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 400D and their specifications in the Canon EF Lens Catalog.
Concerning battery life, the 400D gets 370 shots out of its NB-2LH battery, while the SX730 can take 250 images on a single charge of its NB-13L power pack. The power pack in the SX730 can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.
|1.||Canon 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|2.||Canon SX730||110 mm||64 mm||40 mm||300 g||250||n||Apr 2017||399|
|3.||Canon SX740||110 mm||64 mm||40 mm||299 g||265||n||Jul 2018||399|
|4.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|5.||Canon SX420||104 mm||69 mm||85 mm||325 g||195||n||Jan 2016||299|
|6.||Canon SX720||110 mm||64 mm||36 mm||270 g||250||n||Feb 2016||379|
|7.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|8.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|9.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|10.||Canon 1100D||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|11.||Canon 550D||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|12.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|13.||Canon 450D||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|14.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|15.||Canon 350D||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|16.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|17.||Panasonic TZ90||112 mm||67 mm||41 mm||322 g||380||n||Apr 2017||449|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
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 SX730 was launched at a lower price than the 400D, 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 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon 400D features an APS-C sensor and the Canon SX730 a 1/2.3-inch sensor. The sensor area in the SX730 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 400D has a native 3:2 aspect ratio, while the one in the SX730 offers a 4:3 aspect.
Technology-wise, the SX730 uses a more advanced image processing engine (DIGIC 6) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the SX730 offers a higher resolution of 20.2 megapixels, compared with 10.1 MP of the 400D. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.18μm versus 5.71μm for the 400D). However, it should be noted that the SX730 is much more recent (by 10 years and 7 months) than the 400D, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that the SX730 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Canon SX730 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX730 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Canon 400D are 19.4 x 13 inches or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inches or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inches or 32.9 x 21.9 cm for excellent quality prints.
The Canon EOS 400D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Canon PowerShot SX730 HS are ISO 80 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
| DXO |
|4.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||..||..||..||..|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The SX730 indeed provides for movie recording, while the 400D does not. The highest resolution format that the SX730 can use is 1080/60p.
Apart from body and sensor, cameras can and do differ across a variety of features. For example, the 400D has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the SX730 relies on live view and the rear LCD for framing. The following table reports on some other key feature differences and similarities of the Canon 400D, the Canon SX730, and comparable cameras.
|4.||Canon G7 X Mark II||none||n||3.0||1040||tilting||Y||1/2000s||8.0||Y||Y|
The 400D writes its imaging data to Compact Flash cards, while the SX730 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 400D and Canon PowerShot SX730 HS and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|4.||Canon G7 X Mark II||-||stereo||mono||-||-||micro||2.0||Y||Y||-|
It is notable that the 400D has a hotshoe, while the SX730 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Both the 400D and the SX730 have been discontinued, but can regularly be found used on eBay. The 400D was replaced by the Canon 450D, while the SX730 was followed by the Canon SX730 HS. 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 conclusions can be drawn? Is there a clear favorite between the Canon 400D and the Canon SX730? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor of the Canon EOS 400D:
- 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.
- Easier framing: Has an optical viewfinder for image composition 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 (370 versus 250) on a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- More heavily discounted: Has been available for much longer (launched in August 2006).
Reasons to prefer the Canon PowerShot SX730 HS:
- More detail: Has more megapixels (20.2 vs 10.1MP), which boosts linear resolution by 39%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better jpgs: Has a more modern image processing engine (DIGIC 6 vs DIGIC II).
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.5") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (922k vs 230k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster burst: Shoots at higher frequency (5.9 vs 3 flaps/sec) to capture the decisive moment.
- Ready to shoot: Comes with an integrated lens, while the 400D requires a separate lens.
- More compact: Is smaller (110x64mm vs 127x84mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 400D).
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 10 years and 7 months of technical progress since the 400D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the SX730 is the clear winner of the contest (19 : 11 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 400D and the Canon SX730 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 400D or the SX730 perform in practice. 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 why hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (amateurphotographer [AP], cameralabs [CL], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.
|1.||Canon 400D||..||+ +||+ +||o||4/5||Aug 2006||799|
|2.||Canon SX730||..||+||..||4/5||4/5||Apr 2017||399|
|3.||Canon SX740||..||+||..||4/5||4/5||Jul 2018||399|
|4.||Canon G7 X Mark II||4.5/5||+ +||81/100||4.5/5||4.5/5||Feb 2016||699|
|5.||Canon SX420||..||..||..||..||3/5||Jan 2016||299|
|6.||Canon SX720||..||+||..||4/5||4.5/5||Feb 2016||379|
|7.||Canon 750D||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|8.||Canon 760D||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|9.||Canon 650D||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|10.||Canon 1100D||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|11.||Canon 550D||..||+ +||77/100||4/5||4.5/5||Feb 2010||699|
|12.||Canon 500D||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|13.||Canon 450D||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|14.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|15.||Canon 350D||..||80/100||+ +||o||..||Feb 2005||899|
|16.||Nikon D40X||..||79/100||+ +||4/5||4/5||Mar 2007||729|
|17.||Panasonic TZ90||..||+ +||..||4/5||4/5||Apr 2017||449|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. 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? 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.
Specifications: Canon 400D vs Canon SX730
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 400D||Canon SX730|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||24-960mm f/3.3-6.9|
|Launch Date||August 2006||April 2017|
|Launch Price||USD 799||USD 399|
|Sensor Specs||Canon 400D||Canon SX730|
|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||10.1 Megapixels||20.2 Megapixels|
|Image Resolution||3888 x 2592 pixels||5184 x 3888 pixels|
|Pixel Pitch||5.71 μm||1.18 μm|
|Pixel Density||3.07 MP/cm2||71.80 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100 - 1,600 ISO||80 - 3,200 ISO|
|Image Processor||DIGIC II||DIGIC 6|
|DXO Sensor Quality (score)||62||..|
|DXO Color Depth (bits)||22.1||..|
|DXO Dynamic Range (EV)||11.0||..|
|DXO Low Light (ISO)||664||..|
|Screen Specs||Canon 400D||Canon SX730|
|Viewfinder Type||Optical viewfinder||no viewfinder|
|Viewfinder Field of View||95%|
|LCD Framing||Live View|
|Rear LCD Size||2.5inch||3.0inch|
|LCD Resolution||230k dots||922k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Canon 400D||Canon SX730|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||3 shutter flaps/s||5.9 shutter flaps/s|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 400D||Canon SX730|
|External Flash||Hotshoe||no Hotshoe|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||no HDMI||micro HDMI|
|Wifi Support||no Wifi||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon 400D||Canon SX730|
|Battery Life (CIPA)||370 shots per charge||250 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
127 x 84 x 65 mm
(5.0 x 3.3 x 2.6 in)
110 x 64 x 40 mm
(4.3 x 2.5 x 1.6 in)
|Camera Weight||556 g (19.6 oz)||300 g (10.6 oz)|
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