Canon SX40 vs Panasonic G9
The Canon PowerShot SX40 HS and the Panasonic Lumix DC-G9 are two digital cameras that were announced, respectively, in September 2011 and November 2017. The SX40 is a fixed lens compact, while the G9 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (SX40) and a Four Thirds (G9) sensor. The Canon has a resolution of 12 megapixels, whereas the Panasonic 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 PowerShot SX40 HS and the Panasonic Lumix DC-G9? 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 SX40 and the Panasonic G9 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Panasonic G9 is notably larger (17 percent) than the Canon SX40. It is noteworthy in this context that the G9 is splash and dust-proof, while the SX40 does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX40 has a lens built in, whereas the G9 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 G9 and their specifications in the Micro Four Thirds Lens Catalog.
Concerning battery life, the SX40 gets 380 shots out of its NB-10L battery, while the G9 can take 400 images on a single charge of its DMW-BLF19 power pack. The power pack in the G9 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 want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
|1.||Canon SX40||123 mm||92 mm||108 mm||600 g||380||n||Sep 2011||429|
|2.||Panasonic G9||137 mm||97 mm||92 mm||658 g||400||Y||Nov 2017||1,699|
|3.||Canon SX60||128 mm||93 mm||114 mm||650 g||340||n||Sep 2014||549|
|4.||Canon G1 X||117 mm||81 mm||65 mm||534 g||250||n||Jan 2012||799|
|5.||Canon SX50||123 mm||87 mm||106 mm||595 g||315||n||Sep 2012||429|
|6.||Canon T3||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|7.||Canon SX30||123 mm||92 mm||108 mm||601 g||370||n||Sep 2010||429|
|8.||Canon SX20||123 mm||88 mm||87 mm||600 g||..||n||Aug 2009||399|
|9.||Canon SX10||123 mm||88 mm||87 mm||600 g||..||n||Sep 2008||399|
|10.||Olympus E-M1 III||134 mm||91 mm||69 mm||580 g||420||Y||Feb 2020||1,799|
|11.||Olympus E-M1 II||134 mm||91 mm||67 mm||574 g||440||Y||Sep 2016||1,999|
|12.||Panasonic GH5||139 mm||98 mm||87 mm||725 g||410||Y||Jan 2017||1,999|
|13.||Panasonic G85||128 mm||89 mm||74 mm||505 g||330||Y||Sep 2016||899|
|14.||Panasonic GH4||133 mm||93 mm||84 mm||560 g||500||Y||Feb 2014||1,499|
|15.||Panasonic FZ200||125 mm||87 mm||110 mm||588 g||540||n||Jul 2012||599|
|16.||Panasonic FZ150||124 mm||82 mm||92 mm||528 g||410||n||Aug 2011||499|
|17.||Panasonic FZ100||124 mm||82 mm||92 mm||540 g||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.|
Any camera decision will naturally be influenced heavily by the price. 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 G9, 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. 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. 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 tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Canon SX40 features a 1/2.3-inch sensor and the Panasonic G9 a Four Thirds sensor. The sensor area in the G9 is 704 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 2.0. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.
With 20.2MP, the G9 offers a higher resolution than the SX40 (12MP), but the G9 nevertheless has larger individual pixels (pixel pitch of 3.34μm versus 1.53μm for the SX40) due to its larger sensor. Moreover, the G9 is a much more recent model (by 6 years and 1 month) than the SX40, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The resolution advantage of the Panasonic G9 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G9 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 SX40 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.
Unlike the SX40, the G9 has the capacity to capture high quality composite images (80.6MP) by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
The Canon PowerShot SX40 HS has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Panasonic Lumix DC-G9 are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 100-25600.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. 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 |
|2.||Panasonic G9||Four Thirds||20.2||5184||3888||4K/60p||..||..||..||..|
|4.||Canon G1 X||1.5-inch||14.2||4352||3264||1080/24p||21.7||10.8||644||60|
|10.||Olympus E-M1 III||Four Thirds||20.2||5184||3888||4K/30p||..||..||..||..|
|11.||Olympus E-M1 II||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80|
|12.||Panasonic GH5||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77|
|13.||Panasonic G85||Four Thirds||15.8||4592||3448||4K/30p||22.8||12.5||656||71|
|14.||Panasonic GH4||Four Thirds||15.9||4608||3456||4K/30p||23.2||12.8||791||74|
Many modern cameras are not only capable of taking still images, but can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the G9 provides a better video resolution than the SX40. It can shoot movie footage at 4K/60p, while the Canon is limited to 1080/24p.
Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the G9 offers a substantially higher resolution than the one in the SX40 (3680k vs 202k dots). The following table reports on some other key feature differences and similarities of the Canon SX40, the Panasonic G9, and comparable cameras.
|4.||Canon G1 X||optical||n||3.0||922||Swivel||n||1/4000s||1.9||Y||Y|
|10.||Olympus E-M1 III||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
|11.||Olympus E-M1 II||2360||n||3.0||1037||swivel||Y||1/8000s||18.0||n||Y|
One difference between the cameras concerns the presence of an on-board flash. The SX40 has one, while the G9 does not. While the built-in flash of the SX40 is not very powerful, it can at times be useful as a fill-in light.The G9 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 SX40 does not have a selfie-screen.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the G9 is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Panasonic G9 has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Concerning the storage of imaging data, both the SX40 and the G9 write their files to SDXC cards. The G9 features dual card slots, which can be very useful in case a memory card fails. In contrast, the SX40 only has one slot. The G9 supports UHS-II cards (on both slots), while the SX40 cannot take advantage of Ultra High Speed SD 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 PowerShot SX40 HS and Panasonic Lumix DC-G9 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
|4.||Canon G1 X||Y||stereo||mono||-||-||mini||2.0||-||-||-|
|10.||Olympus E-M1 III||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y|
|11.||Olympus E-M1 II||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-|
It is notable that the G9 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the SX40 does not provide wifi capability.
Studio photographers will appreciate that the Panasonic G9 (unlike the SX40) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The G9 is a recent model that features in the current product line-up of Panasonic. In contrast, the SX40 has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the SX40 was succeeded 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 and Panasonic websites.
So what conclusions can be drawn? Is there a clear favorite between the Canon SX40 and the Panasonic G9? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Canon PowerShot SX40 HS:
- Ready to shoot: Has a lens built-in, whereas the G9 requires a separate lens.
- More compact: Is smaller (123x92mm vs 137x97mm) and thus needs less room in the bag.
- Less heavy: Is lighter even though it comes with a built-in lens (unlike the G9).
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More heavily discounted: Has been available for much longer (launched in September 2011).
Arguments in favor of the Panasonic Lumix DC-G9:
- More detail: Has more megapixels (20.2 vs 12MP), which boosts linear resolution by 30%.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Better video: Provides higher definition movie capture (4K/60p vs 1080/24p).
- Better sound: Can connect to an external microphone for higher quality sound recording.
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- More detailed viewfinder: Has higher resolution electronic viewfinder (3680k vs 202k dots).
- Easier setting verification: Features a control panel on top to check shooting parameters.
- Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/3200s) to freeze action.
- Faster burst: Shoots at higher frequency (20 vs 10.3 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
- Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports Ultra High Speed (UHS-II) SDXC cards on both slots.
- More modern: Reflects 6 years and 1 month of technical progress since the SX40 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the G9 is the clear winner of the contest (30 : 6 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 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 SX40 and the Panasonic G9 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Mirrorless Interchangeable Lens 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 SX40 or the G9. 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 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 SX40||..||+||..||4.5/5||4/5||Sep 2011||429|
|2.||Panasonic G9||..||+ +||85/100||5/5||5/5||Nov 2017||1,699|
|3.||Canon SX60||3/5||+ +||75/100||4/5||4.5/5||Sep 2014||549|
|4.||Canon G1 X||5/5||+||76/100||4/5||4.5/5||Jan 2012||799|
|5.||Canon SX50||3/5||+ +||72/100||4.5/5||4.5/5||Sep 2012||429|
|6.||Canon T3||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|7.||Canon SX30||3/5||+ +||..||3.5/5||4/5||Sep 2010||429|
|8.||Canon SX20||..||+ +||73/100||..||4/5||Aug 2009||399|
|9.||Canon SX10||..||+ +||..||..||4/5||Sep 2008||399|
|10.||Olympus E-M1 III||5/5||..||83/100||4.5/5||4/5||Feb 2020||1,799|
|11.||Olympus E-M1 II||5/5||+ +||85/100||4.5/5||4.5/5||Sep 2016||1,999|
|12.||Panasonic GH5||4.5/5||+ +||85/100||4.5/5||5/5||Jan 2017||1,999|
|13.||Panasonic G85||..||+ +||84/100||5/5||4.5/5||Sep 2016||899|
|14.||Panasonic GH4||5/5||+ +||85/100||5/5||5/5||Feb 2014||1,499|
|15.||Panasonic FZ200||3/5||+ +||80/100||4.5/5||4.5/5||Jul 2012||599|
|16.||Panasonic FZ150||3/5||+ +||76/100||4/5||4.5/5||Aug 2011||499|
|17.||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 are only valid when referring to cameras in the same category and of the same age. 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. 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? 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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
Specifications: Canon SX40 vs Panasonic G9
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 SX40||Panasonic G9|
|Camera Type||Fixed lens compact camera||Mirrorless system camera|
|Camera Lens||24-840mm f/2.7-5.8||Micro Four Thirds lenses|
|Launch Date||September 2011||November 2017|
|Launch Price||USD 429||USD 1,699|
|Sensor Specs||Canon SX40||Panasonic G9|
|Sensor Format||1/2.3" Sensor||Four Thirds Sensor|
|Sensor Size||6.17 x 4.55 mm||17.3 x 13.0 mm|
|Sensor Area||28.0735 mm2||224.9 mm2|
|Sensor Diagonal||7.7 mm||21.6 mm|
|Sensor Resolution||12 Megapixels||20.2 Megapixels|
|Image Resolution||4000 x 3000 pixels||5184 x 3888 pixels|
|Pixel Pitch||1.53 μm||3.34 μm|
|Pixel Density||42.74 MP/cm2||8.96 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||1080/24p Video||4K/60p Video|
|ISO Setting||100 - 3,200 ISO||200 - 25,600 ISO|
|ISO Boost||no Enhancement||100 - 25,600 ISO|
|Screen Specs||Canon SX40||Panasonic G9|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||202k dots||3680k dots|
|Top-Level Screen||no Top Display||Control Panel|
|LCD Framing||Live View||Live View|
|Rear LCD Size||2.7inch||3.0inch|
|LCD Resolution||230k dots||1040k dots|
|LCD Attachment||Swivel screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon SX40||Panasonic G9|
|Focus System||Contrast-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/3200s||1/8000s|
|Continuous Shooting||10.3 shutter flaps/s||20 shutter flaps/s|
|Electronic Shutter||no E-Shutter||up to 1/32000s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens-based stabilization||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||no||Dual UHS-II|
|Connectivity Specs||Canon SX40||Panasonic G9|
|Studio Flash||no PC Sync||PC Sync socket|
|USB Connector||USB 2.0||USB 3.0|
|HDMI Port||YES HDMI||full HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||no Wifi||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Canon SX40||Panasonic G9|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||380 shots per charge||400 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
123 x 92 x 108 mm
(4.8 x 3.6 x 4.3 in)
137 x 97 x 92 mm
(5.4 x 3.8 x 3.6 in)
|Camera Weight||600 g (21.2 oz)||658 g (23.2 oz)|
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