Canon 400D vs G9X Mark II
The Canon EOS 400D (called Canon XTi in some regions) and the Canon PowerShot G9 X Mark II are two digital cameras that were revealed to the public, respectively, in August 2006 and January 2017. The 400D is a DSLR, while the G9X Mark II is a fixed lens compact. The cameras are based on an APS-C (400D) and an one-inch (G9X Mark II) sensor. The 400D has a resolution of 10.1 megapixels, whereas the G9X Mark II provides 20 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 G9 X Mark II? 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 400D and the Canon G9 X Mark II 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 G9X Mark II 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 G9 X Mark II is considerably smaller (47 percent) than the Canon 400D. In this context, it is worth noting that neither the 400D nor the G9X Mark II are weather-sealed.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G9X Mark II 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 G9X Mark II can take 235 images on a single charge of its NB-13L power pack. The power pack in the G9X Mark II can be charged via the USB port, which can be very convenient when travelling.
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, you can use the CAM-parator app to select your camera combination among a large number of options.
|1.||Canon 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|2.||Canon G9 X Mark II||98 mm||58 mm||31 mm||206 g||235||n||Jan 2017||529|
|3.||Canon M100||108 mm||67 mm||35 mm||302 g||295||n||Aug 2017||499|
|4.||Canon SL2||122 mm||93 mm||70 mm||453 g||650||n||Jun 2017||549|
|5.||Canon G7 X Mark II||106 mm||61 mm||42 mm||319 g||265||n||Feb 2016||699|
|6.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|7.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|8.||Canon G9 X||98 mm||58 mm||31 mm||209 g||220||n||Oct 2015||529|
|9.||Canon G7 X||103 mm||60 mm||40 mm||304 g||210||n||Sep 2014||699|
|10.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|11.||Canon 1100D||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|12.||Canon 550D||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|13.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|14.||Canon 450D||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|15.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|16.||Canon 350D||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|17.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|Notes: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The G9X Mark II was launched at a lower price than the 400D, 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 size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels 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 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 G9 X Mark II an one-inch sensor. The sensor area in the G9X Mark II is 65 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 2.7. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the G9X Mark II uses a more advanced image processing engine (DIGIC 7) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.
Despite having a smaller sensor, the G9X Mark II offers a higher resolution of 20 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 2.41μm versus 5.71μm for the 400D). However, it should be noted that the G9X Mark II is much more recent (by 10 years and 4 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.
The resolution advantage of the Canon G9 X Mark II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G9X Mark II for good quality output (200 dots per inch) amounts to 27.4 x 18.2 inches or 69.5 x 46.3 cm, for very good quality (250 dpi) 21.9 x 14.6 inches or 55.6 x 37.1 cm, and for excellent quality (300 dpi) 18.2 x 12.2 inches or 46.3 x 30.9 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 G9 X Mark II are ISO 125 to ISO 12800 (no boost).
For many 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 imaging performance. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|2.||Canon G9 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
|5.||Canon G7 X Mark II||1-inch||20.0||5472||3648||1080/60p||21.8||11.9||260||62|
|8.||Canon G9 X||1-inch||20.0||5472||3648||1080/60p||21.5||12.3||495||63|
|9.||Canon G7 X||1-inch||20.0||5472||3648||1080/60p||23.0||12.7||556||71|
|Note: DXO values in italics represent estimates based on sensor size and age.|
Many modern cameras are not only capable of taking still images, but can also record movies. The G9X Mark II indeed provides for movie recording, while the 400D does not. The highest resolution format that the G9X Mark II 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 G9X Mark II 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 G9 X Mark II, and comparable cameras.
|1.||Canon 400D||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
|2.||Canon G9 X Mark II||none||n||3.0 / 1040||fixed||Y||1/2000s||8.2||Y||Y|
|3.||Canon M100||none||n||3.0 / 1040||tilting||Y||1/4000s||6.1||Y||n|
|4.||Canon SL2||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|5.||Canon G7 X Mark II||none||n||3.0 / 1040||tilting||Y||1/2000s||8.0||Y||Y|
|6.||Canon 750D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|7.||Canon 760D||optical||Y||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|8.||Canon G9 X||none||n||3.0 / 1040||fixed||Y||1/2000s||6.0||Y||Y|
|9.||Canon G7 X||none||n||3.0 / 1040||tilting||Y||1/2000s||6.5||Y||Y|
|10.||Canon 650D||optical||n||3.0 / 1040||swivel||Y||1/4000s||5.0||Y||n|
|11.||Canon 1100D||optical||n||2.7 / 230||fixed||n||1/4000s||3.0||Y||n|
|12.||Canon 550D||optical||n||3.0 / 1040||fixed||n||1/4000s||3.7||Y||n|
|13.||Canon 500D||optical||n||3.0 / 920||fixed||n||1/4000s||3.4||Y||n|
|14.||Canon 450D||optical||n||3.0 / 230||fixed||n||1/4000s||3.5||Y||n|
|15.||Canon 40D||optical||Y||3.0 / 230||fixed||n||1/8000s||6.5||Y||n|
|16.||Canon 350D||optical||n||1.8 / 115||fixed||n||1/4000s||3.0||Y||n|
|17.||Nikon D40X||optical||n||2.5 / 230||fixed||n||1/4000s||3.0||Y||n|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G9X Mark II has a touchscreen, while the 400D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The Canon G9 X Mark II 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.
The 400D writes its imaging data to Compact Flash cards, while the G9X Mark II 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 G9 X Mark II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
Mic / Speaker
|1.||Canon 400D||Y||- / -||-||-||-||2.0||-||-||-|
|2.||Canon G9 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|3.||Canon M100||-||stereo / mono||-||-||micro||2.0||Y||Y||Y|
|4.||Canon SL2||Y||stereo / mono||Y||-||mini||2.0||Y||Y||Y|
|5.||Canon G7 X Mark II||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|6.||Canon 750D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|7.||Canon 760D||Y||stereo / mono||Y||-||mini||2.0||Y||Y||-|
|8.||Canon G9 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|9.||Canon G7 X||-||stereo / mono||-||-||micro||2.0||Y||Y||-|
|10.||Canon 650D||Y||stereo / mono||Y||-||mini||2.0||-||-||-|
|11.||Canon 1100D||Y||stereo / mono||-||-||mini||2.0||-||-||-|
|12.||Canon 550D||Y||stereo / -||Y||-||mini||2.0||-||-||-|
|13.||Canon 500D||Y||mono / mono||-||-||mini||2.0||-||-||-|
|14.||Canon 450D||Y||- / -||-||-||mini||2.0||-||-||-|
|15.||Canon 40D||Y||- / -||-||-||-||2.0||-||-||-|
|16.||Canon 350D||Y||- / -||-||-||-||2.0||-||-||-|
|17.||Nikon D40X||Y||- / -||-||-||-||2.0||-||-||-|
It is notable that the 400D has a hotshoe, while the G9X Mark II does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.
The G9X Mark II is a recent model that features in the current product line-up of Canon. In contrast, the 400D has been discontinued (but can be found pre-owned on eBay). As a replacement in the same line of cameras, the 400D was succeeded by the Canon 450D. 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 G9 X Mark II? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Arguments in favor of the Canon EOS 400D:
- Better low-light sensitivity: Requires less light for good images (0.3 stops ISO advantage).
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (370 versus 235) 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).
Advantages of the Canon PowerShot G9 X Mark II:
- More detail: Has more megapixels (20 vs 10.1MP), which boosts linear resolution by 41%.
- More dynamic range: Captures a broader range of light and dark details (1.5 EV of extra DR).
- Better jpgs: Has a more modern image processing engine (DIGIC 7 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 (1040k vs 230k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster burst: Shoots at higher frequency (8.2 vs 3 flaps/sec) to capture the decisive moment.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- Ready to shoot: Comes with an integrated lens, while the 400D requires a separate lens.
- More compact: Is smaller (98x58mm 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 4 months of technical progress since the 400D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the G9X Mark II is the clear winner of the contest (19 : 7 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 G9 X Mark II place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Travel-Zoom 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 400D and the G9X Mark II 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 where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], 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 G9 X Mark II||4/5||..||4/5||75/100||4.5/5||4.5/5||Jan 2017||529|
|3.||Canon M100||3/5||+||..||..||4/5||3.5/5||Aug 2017||499|
|4.||Canon SL2||4/5||+ +||4/5||78/100||4.5/5||4.5/5||Jun 2017||549|
|5.||Canon G7 X Mark II||4.5/5||+ +||..||81/100||4.5/5||4.5/5||Feb 2016||699|
|6.||Canon 750D||5/5||..||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|7.||Canon 760D||5/5||+||..||77/100||4.5/5||4.5/5||Feb 2015||649|
|8.||Canon G9 X||3.5/5||+ +||..||..||4.5/5||4.5/5||Oct 2015||529|
|9.||Canon G7 X||4/5||+ +||..||77/100||4.5/5||4.5/5||Sep 2014||699|
|10.||Canon 650D||4/5||+ +||..||77/100||4.5/5||4.5/5||Jun 2012||849|
|11.||Canon 1100D||..||80/100||..||69/100||4/5||4.5/5||Feb 2011||449|
|12.||Canon 550D||..||+ +||..||77/100||4/5||4.5/5||Feb 2010||699|
|13.||Canon 500D||..||+ +||..||74/100||4.5/5||4.5/5||Mar 2009||799|
|14.||Canon 450D||..||+ +||..||+ +||4/5||4.5/5||Jan 2008||799|
|15.||Canon 40D||..||+ +||..||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|16.||Canon 350D||..||80/100||..||+ +||o||..||Feb 2005||899|
|17.||Nikon D40X||..||79/100||..||+ +||4/5||4/5||Mar 2007||729|
|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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 400D vs Canon 550D
- Canon 400D vs Canon SX60
- Canon 400D vs Nikon 1 V2
- Canon 400D vs Nikon P7800
- Canon 400D vs Sony NEX-3
- Canon 400D vs Sony RX0 II
- Canon G9 X Mark II vs Canon M200
- Canon G9 X Mark II vs Canon T100
- Canon G9 X Mark II vs Leica D-LUX 6
- Canon G9 X Mark II vs Nikon Z50
- Canon G9 X Mark II vs Olympus E-M10
- Canon G9 X Mark II vs Ricoh GR
Specifications: Canon 400D vs Canon G9 X Mark II
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 G9 X Mark II|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||28-84mm f/2.0-4.9|
|Launch Date||August 2006||January 2017|
|Launch Price||USD 799||USD 529|
|Sensor Specs||Canon 400D||Canon G9 X Mark II|
|Sensor Format||APS-C Sensor||1" Sensor|
|Sensor Size||22.2 x 14.8 mm||13.2 x 8.8 mm|
|Sensor Area||328.56 mm2||116.16 mm2|
|Sensor Diagonal||26.7 mm||15.9 mm|
|Sensor Resolution||10.1 Megapixels||20 Megapixels|
|Image Resolution||3888 x 2592 pixels||5472 x 3648 pixels|
|Pixel Pitch||5.71 μm||2.41 μm|
|Pixel Density||3.07 MP/cm2||17.18 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100 - 1,600 ISO||125 - 12,800 ISO|
|Image Processor||DIGIC II||DIGIC 7|
|DXO Sensor Quality (score)||62||65|
|DXO Color Depth (bits)||22.1||21.9|
|DXO Dynamic Range (EV)||11.0||12.5|
|DXO Low Light (ISO)||664||522|
|Screen Specs||Canon 400D||Canon G9 X Mark II|
|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||1040k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 400D||Canon G9 X Mark II|
|Focus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/2000s|
|Continuous Shooting||3 shutter flaps/s||8.2 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Fill Flash||Built-in Flash||Built-in Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|Connectivity Specs||Canon 400D||Canon G9 X Mark II|
|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 G9 X Mark II|
|Battery Life (CIPA)||370 shots per charge||235 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)
98 x 58 x 31 mm
(3.9 x 2.3 x 1.2 in)
|Camera Weight||556 g (19.6 oz)||206 g (7.3 oz)|
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