Canon 40D vs SX730
The Canon EOS 40D and the Canon PowerShot SX730 HS are two digital cameras that were announced, respectively, in August 2007 and April 2017. The 40D is a DSLR, while the SX730 is a fixed lens compact. The cameras are based on an APS-C (40D) and a 1/2.3-inch (SX730) sensor. The 40D 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.
|Canon 40D||Canon SX730|
|Digital single lens reflex||Fixed lens compact camera|
|Canon EF mount lenses||24-960mm f/3.3-6.9|
|10.1 MP, APS-C Sensor||20.2 MP, 1/2.3" Sensor|
|no Video||1080/60p Video|
|ISO 100-1600 (100-3200)||ISO 80-3200|
|Optical viewfinder||No viewfinder, LCD framing|
|3.0" LCD, 230k dots||3.0" LCD, 922k dots|
|Fixed screen (not touch-sensitive)||Tilting screen (not touch-sensitive)|
|6.5 shutter flaps per second||5.9 shutter flaps per second|
|750 shots per battery charge||250 shots per battery charge|
|146 x 108 x 74 mm, 822 g||110 x 64 x 40 mm, 300 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 40D 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 physical size and weight of the Canon 40D and the Canon SX730 are illustrated in the side-by-side display below. 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 40D 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 (55 percent) than the Canon 40D. In this context, it is worth noting that neither the 40D 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 40D 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 40D and their specifications in the Canon EF Lens Catalog.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Canon 40D»||5.7 in||4.3 in||2.9 in||29.0 oz||750||n||Aug 2007||1,299||Canon 40D|
|Canon SX730«||4.3 in||2.5 in||1.6 in||10.6 oz||250||n||Apr 2017||399||Canon SX730|
|Canon SX740« »||4.3 in||2.5 in||1.6 in||10.5 oz||265||n||Jul 2018||399||Canon SX740|
|Canon SX420« »||4.1 in||2.7 in||3.3 in||11.5 oz||195||n||Jan 2016||299||Canon SX420|
|Canon SX540« »||4.7 in||3.2 in||3.6 in||15.6 oz||205||n||Jan 2016||399||Canon SX540|
|Canon SX720« »||4.3 in||2.5 in||1.4 in||9.5 oz||250||n||Feb 2016||379||Canon SX720|
|Canon SX710« »||4.4 in||2.6 in||1.4 in||9.5 oz||230||n||Jan 2015||349||Canon SX710|
|Canon T3« »||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449||Canon T3|
|Canon 60D« »||5.7 in||4.2 in||3.1 in||26.6 oz||1100||Y||Aug 2010||1,399||Canon 60D|
|Canon 50D« »||5.7 in||4.3 in||2.9 in||29.0 oz||800||Y||Aug 2008||1,299||Canon 50D|
|Canon XS« »||5.0 in||3.9 in||2.6 in||17.7 oz||500||n||Jun 2008||449||Canon XS|
|Canon XSi« »||5.1 in||3.9 in||2.4 in||18.5 oz||500||n||Jan 2008||799||Canon XSi|
|Canon 30D« »||5.7 in||4.2 in||2.9 in||27.7 oz||750||n||Feb 2006||1,399||Canon 30D|
|Canon XTi« »||5.0 in||3.3 in||2.6 in||19.6 oz||370||n||Aug 2006||799||Canon XTi|
|Canon 20D« »||5.7 in||4.2 in||2.8 in||27.2 oz||700||n||Aug 2004||1,499||Canon 20D|
|Canon 10D« »||5.9 in||4.2 in||3.0 in||30.0 oz||500||n||Feb 2003||1,999||Canon 10D|
|Nikon D90« »||5.2 in||4.1 in||3.0 in||24.8 oz||850||n||Aug 2008||1,299||Nikon D90|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The SX730 was launched at a lower price than the 40D, despite having a lens built in. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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 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 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.
Of the two cameras under consideration, the Canon 40D features an APS-C sensor and the Canon SX730 a 1/2.3-inch sensor. The sensor area in the SX730 is 92 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 40D 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 40D (DIGIC 3), 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 40D. 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 5.73μm for the 40D). However, it should be noted that the SX730 is much more recent (by 9 years and 7 months) than the 40D, 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 inch or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inch or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inch or 43.9 x 32.9 cm. The corresponding values for the Canon 40D are 19.4 x 13 inch or 49.4 x 32.9 cm for good quality, 15.6 x 10.4 inch or 39.5 x 26.3 cm for very good quality, and 13 x 8.6 inch or 32.9 x 21.9 cm for excellent quality prints.
The Canon EOS 40D has a native sensitivity range from ISO 100 to ISO 1600, which can be extended to ISO 100-3200. 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 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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Canon 40D||APS-C||10.1||3888||2592||none||22.1||11.3||703||64||Canon 40D|
|Canon SX730||1/2.3||20.2||5184||3888||1080/60p||..||..||..||..||Canon SX730|
|Canon SX740||1/2.3||20.2||5184||3888||4K/30p||..||..||..||..||Canon SX740|
|Canon SX420||1/2.3||19.9||5152||3864||720/25p||..||..||..||..||Canon SX420|
|Canon SX540||1/2.3||20.2||5184||3888||1080/60p||..||..||..||..||Canon SX540|
|Canon SX720||1/2.3||20.2||5184||3888||1080/60p||..||..||..||..||Canon SX720|
|Canon SX710||1/2.3||20.2||5184||3888||1080/60p||..||..||..||..||Canon SX710|
|Canon T3||APS-C||12.2||4272||2848||720/30p||21.9||11.0||755||62||Canon T3|
|Canon 60D||APS-C||17.9||5184||3456||1080/30p||22.2||11.5||813||66||Canon 60D|
|Canon 50D||APS-C||15.1||4752||3168||none||21.8||11.4||696||63||Canon 50D|
|Canon XS||APS-C||10.1||3888||2592||none||..||..||..||..||Canon XS|
|Canon XSi||APS-C||12.2||4272||2848||none||21.9||10.8||692||61||Canon XSi|
|Canon 30D||APS-C||8.2||3504||2336||none||21.5||10.8||736||59||Canon 30D|
|Canon XTi||APS-C||10.1||3888||2592||none||22.1||11.0||664||62||Canon XTi|
|Canon 20D||APS-C||8.2||3504||2336||none||21.9||11.0||721||62||Canon 20D|
|Canon 10D||APS-C||6.3||3072||2048||none||21.1||10.9||571||57||Canon 10D|
|Nikon D90||APS-C||12.2||4288||2848||720/24p||22.7||12.5||977||73||Nikon D90|
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 40D does not. The highest resolution format that the SX730 can use is 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the 40D 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 table below summarizes some of the other core capabilities of the Canon 40D and Canon SX730 in connection with corresponding information for a sample of similar cameras.
|Canon 40D||optical||Y||3.0||230||fixed||n||1/8000s||6.5||Y||n||Canon 40D|
|Canon SX730||none||n||3.0||922||tilting||n||1/3200s||5.9||Y||Y||Canon SX730|
|Canon SX740||none||n||3.0||922||tilting||n||1/3200s||10.0||Y||Y||Canon SX740|
|Canon SX420||none||n||3.0||230||fixed||n||1/4000s||0.5||Y||Y||Canon SX420|
|Canon SX540||none||n||3.0||461||fixed||n||1/2000s||5.9||Y||Y||Canon SX540|
|Canon SX720||none||n||3.0||922||fixed||n||1/3200s||5.9||Y||Y||Canon SX720|
|Canon SX710||none||n||3.0||922||fixed||n||1/3200s||6.0||Y||Y||Canon SX710|
|Canon T3||optical||n||2.7||230||fixed||n||1/4000s||3.0||Y||n||Canon T3|
|Canon 60D||optical||Y||3.0||1040||swivel||n||1/8000s||5.3||Y||n||Canon 60D|
|Canon 50D||optical||Y||3.0||920||fixed||n||1/8000s||6.3||Y||n||Canon 50D|
|Canon XS||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Canon XS|
|Canon XSi||optical||n||3.0||230||fixed||n||1/4000s||3.5||Y||n||Canon XSi|
|Canon 30D||optical||Y||2.5||230||fixed||n||1/8000s||5.0||Y||n||Canon 30D|
|Canon XTi||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Canon XTi|
|Canon 20D||optical||Y||1.8||118||fixed||n||1/8000s||5.0||Y||n||Canon 20D|
|Canon 10D||optical||Y||1.8||118||fixed||n||1/4000s||3.0||Y||n||Canon 10D|
|Nikon D90||optical||Y||3.0||920||fixed||n||1/4000s||4.5||Y||n||Nikon D90|
One feature that is present on the 40D, but is missing on the SX730 is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.The SX730 has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the 40D does not have a selfie-screen.
The 40D 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 40D and Canon PowerShot SX730 HS and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 40D||Y||none||none||-||-||none||2.0||-||-||-||Canon 40D|
|Canon SX730||-||stereo||mono||-||-||micro||2.0||Y||Y||Y||Canon SX730|
|Canon SX740||-||stereo||mono||-||-||micro||2.0||Y||Y||Y||Canon SX740|
|Canon SX420||-||mono||mono||-||-||none||2.0||Y||Y||-||Canon SX420|
|Canon SX540||-||stereo||mono||-||-||mini||2.0||Y||Y||-||Canon SX540|
|Canon SX720||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Canon SX720|
|Canon SX710||-||stereo||mono||-||-||micro||2.0||Y||Y||-||Canon SX710|
|Canon T3||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon T3|
|Canon 60D||Y||mono||mono||Y||-||mini||2.0||-||-||-||Canon 60D|
|Canon 50D||Y||none||none||-||-||mini||2.0||-||-||-||Canon 50D|
|Canon XS||Y||none||none||-||-||none||2.0||-||-||-||Canon XS|
|Canon XSi||Y||none||none||-||-||mini||2.0||-||-||-||Canon XSi|
|Canon 30D||Y||none||none||-||-||none||2.0||-||-||-||Canon 30D|
|Canon XTi||Y||none||none||-||-||none||2.0||-||-||-||Canon XTi|
|Canon 20D||Y||none||none||-||-||none||1.1||-||-||-||Canon 20D|
|Canon 10D||Y||none||none||-||-||none||1.1||-||-||-||Canon 10D|
|Nikon D90||Y||mono||mono||-||-||mini||2.0||-||-||-||Nikon D90|
It is notable that the 40D has a hotshoe, while the SX730 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
Studio photographers will appreciate that the Canon 40D (unlike the SX730) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the 40D and the SX730 have been discontinued, but can regularly be found used on eBay. The 40D was replaced by the Canon 50D, 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 the Canon 40D better than the Canon SX730 or vice versa? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Canon EOS 40D:
- 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.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/3200s) to freeze action.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (750 versus 250) on a single battery charge.
- Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More heavily discounted: Has been available for much longer (launched in August 2007).
Advantages of 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 3).
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- 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.
- Ready to shoot: Comes with an integrated lens, while the 40D requires a separate lens.
- More compact: Is smaller (110x64mm vs 146x108mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the 40D).
- 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 9 years and 7 months of technical progress since the 40D launch.
If the count of individual advantages (bullet points above) is taken as a guide, the SX730 emerges as the winner of the match-up (16 : 13 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports 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 40D 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 the spec-sheets of cameras can offer a general idea of their imaging potential, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 40D or the SX730. 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 (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.
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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 make a corresponding selection in the search boxes below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 40D vs Canon S120
- Canon 40D vs Fujifilm X-T2
- Canon 40D vs Hasselblad X1D II
- Canon 40D vs Sony RX0 II
- Canon 5DS R vs Canon SX730
- Canon SX620 vs Canon SX730
- Canon SX730 vs Fujifilm GFX 50R
- Canon SX730 vs Fujifilm X100V
- Canon SX730 vs Leica V-LUX 4
- Canon SX730 vs Pentax 645Z
- Canon SX730 vs Sony RX0
- Canon SX730 vs YI M1
Specifications: Canon 40D 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 40D||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 2007||April 2017|
|Launch Price||USD 1299||USD 399|
|Sensor Specs||Canon 40D||Canon SX730|
|Sensor Format||APS-C Sensor||1/2.3" Sensor|
|Sensor Size||22.3 x 14.9 mm||6.17 x 4.55 mm|
|Sensor Area||332.27 mm2||28.0735 mm2|
|Sensor Diagonal||26.8 mm||7.7 mm|
|Sensor Resolution||10.1 Megapixels||20.2 Megapixels|
|Image Resolution||3888 x 2592 pixels||5184 x 3888 pixels|
|Pixel Pitch||5.73 μm||1.18 μm|
|Pixel Density||3.03 MP/cm2||71.80 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100-1600 ISO||80-3200 ISO|
|ISO Boost||100-3200 ISO||no Enhancement|
|Image Processor||DIGIC 3||DIGIC 6|
|DXO Sensor Quality (score)||64||..|
|DXO Color Depth (bits)||22.1||..|
|DXO Dynamic Range (EV)||11.3||..|
|DXO Low Light (ISO)||703||..|
|Screen Specs||Canon 40D||Canon SX730|
|Viewfinder Type||Optical viewfinder||No viewfinder|
|Viewfinder Field of View||95%|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||230k dots||922k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Canon 40D||Canon SX730|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Continuous Shooting||6.5 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 40D||Canon SX730|
|External Flash||Hotshoe||no Hotshoe|
|Studio Flash||PC Sync socket||no PC Sync|
|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 40D||Canon SX730|
|Battery Life (CIPA)||750 shots per charge||250 shots per charge|
146 x 108 x 74 mm
(5.7 x 4.3 x 2.9 in)
110 x 64 x 40 mm
(4.3 x 2.5 x 1.6 in)
|Camera Weight||822 g (29.0 oz)||300 g (10.6 oz)|
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