Canon 400D vs G1X Mark III
The Canon EOS 400D (called Canon XTi in some regions) and the Canon PowerShot G1 X Mark III are two digital cameras that were revealed to the public, respectively, in August 2006 and October 2017. The 400D is a DSLR, while the G1X Mark III is a fixed lens compact. Both cameras are equipped with an APS-C sensor. The 400D has a resolution of 10.1 megapixels, whereas the G1X Mark III provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Canon 400D||Canon G1 X Mark III|
|Digital single lens reflex||Fixed lens compact camera|
|Canon EF mount lenses||24-72mm f/2.8-5.6|
|10.1 MP, APS-C Sensor||24 MP, APS-C Sensor|
|no Video||1080/60p Video|
|ISO 100-1600||ISO 100-25600|
|Optical viewfinder||Electronic viewfinder (2360k dots)|
|2.5" LCD, 230k dots||3.0" LCD, 1040k dots|
|Fixed screen (not touch-sensitive)||Swivel touchscreen|
|3 shutter flaps per second||9 shutter flaps per second|
|Not weather sealed||Weathersealed body|
|370 shots per battery charge||200 shots per battery charge|
|127 x 84 x 65 mm, 556 g||115 x 78 x 51 mm, 399 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 400D and the Canon PowerShot G1 X Mark III? 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.
An illustration of the physical size and weight of the Canon 400D and the Canon G1 X Mark III is provided 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 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 G1 X Mark III is notably smaller (16 percent) than the Canon 400D. It is noteworthy in this context that the G1X Mark III is splash and dust-proof, while the 400D does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the G1X Mark III 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.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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 400D»||5.0 in||3.3 in||2.6 in||19.6 oz||370||n||Aug 2006||799||Canon 400D|
|Canon G1 X Mark III«||4.5 in||3.1 in||2.0 in||14.1 oz||200||Y||Oct 2017||1,299||Canon G1 X Mark III|
|Canon 80D« »||5.5 in||4.1 in||3.1 in||25.8 oz||960||Y||Feb 2016||1,199||Canon 80D|
|Canon 750D« »||5.2 in||4.0 in||3.1 in||19.6 oz||440||n||Feb 2015||749||Canon 750D|
|Canon 760D« »||5.2 in||4.0 in||3.1 in||19.9 oz||440||n||Feb 2015||649||Canon 760D|
|Canon 650D« »||5.2 in||3.9 in||3.1 in||20.3 oz||440||n||Jun 2012||849||Canon 650D|
|Canon 1100D« »||5.1 in||3.9 in||3.1 in||17.5 oz||700||n||Feb 2011||449||Canon 1100D|
|Canon 550D« »||5.1 in||3.9 in||2.4 in||18.7 oz||440||n||Feb 2010||699||Canon 550D|
|Canon 500D« »||5.1 in||3.9 in||2.4 in||18.3 oz||400||n||Mar 2009||799||Canon 500D|
|Canon 450D« »||5.1 in||3.9 in||2.4 in||18.5 oz||500||n||Jan 2008||799||Canon 450D|
|Canon 40D« »||5.7 in||4.3 in||2.9 in||29.0 oz||750||n||Aug 2007||1,299||Canon 40D|
|Canon 350D« »||5.0 in||3.7 in||2.5 in||19.0 oz||400||n||Feb 2005||899||Canon 350D|
|Fujifilm X100V« »||5.0 in||3.0 in||2.1 in||16.9 oz||420||Y||Feb 2020||1,399||Fujifilm X100V|
|Fujifilm X100F« »||5.0 in||3.0 in||2.0 in||16.5 oz||390||n||Jan 2017||1,299||Fujifilm X100F|
|Nikon D40X« »||4.9 in||3.7 in||2.5 in||18.4 oz||520||n||Mar 2007||729||Nikon D40X|
|Sony A6300« »||4.7 in||2.6 in||1.9 in||14.3 oz||400||Y||Feb 2016||999||Sony A6300|
|Sony A6500« »||4.7 in||2.6 in||2.1 in||16.0 oz||350||Y||Oct 2016||1,399||Sony A6500|
|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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. 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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the G1X Mark III is 1 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (400D) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the G1X Mark III uses a more advanced image processing engine (DIGIC 7) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.
With 24MP, the G1X Mark III offers a higher resolution than the 400D (10.1MP), but the G1X Mark III has smaller individual pixels (pixel pitch of 3.72μm versus 5.71μm for the 400D). Yet, the G1X Mark III is a much more recent model (by 11 years and 1 month) than the 400D, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Canon G1 X Mark III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the G1X Mark III for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Canon 400D 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 G1X Mark III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Canon EOS 400D has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Canon PowerShot G1 X Mark III are ISO 100 to ISO 25600 (no boost).
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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Canon 400D||APS-C||10.1||3888||2592||none||22.1||11.0||664||62||Canon 400D|
|Canon G1 X Mark III||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Canon G1 X Mark III|
|Canon 80D||APS-C||24.0||6000||4000||1080/60p||23.6||13.2||1135||79||Canon 80D|
|Canon 750D||APS-C||24.0||6000||4000||1080/30p||22.7||12.0||919||71||Canon 750D|
|Canon 760D||APS-C||24.0||6000||4000||1080/30p||22.6||12.0||915||70||Canon 760D|
|Canon 650D||APS-C||17.9||5184||3456||1080/30p||21.7||11.2||722||62||Canon 650D|
|Canon 1100D||APS-C||12.2||4272||2848||720/30p||21.9||11.0||755||62||Canon 1100D|
|Canon 550D||APS-C||17.9||5184||3456||1080/30p||22.1||11.5||784||66||Canon 550D|
|Canon 500D||APS-C||15.1||4752||3168||1080/20p||21.7||11.5||663||63||Canon 500D|
|Canon 450D||APS-C||12.2||4272||2848||none||21.9||10.8||692||61||Canon 450D|
|Canon 40D||APS-C||10.1||3888||2592||none||22.1||11.3||703||64||Canon 40D|
|Canon 350D||APS-C||8.0||3456||2304||none||21.8||10.8||637||60||Canon 350D|
|Fujifilm X100V||APS-C||26.0||6240||4160||4K/30p||..||..||..||..||Fujifilm X100V|
|Fujifilm X100F||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Fujifilm X100F|
|Nikon D40X||APS-C||10.0||3872||2592||none||22.4||11.4||516||63||Nikon D40X|
|Sony A6300||APS-C||24.0||6000||4000||4K/30p||24.4||13.7||1437||85||Sony A6300|
|Sony A6500||APS-C||24.0||6000||4000||4K/30p||24.5||13.7||1405||85||Sony A6500|
Many modern cameras cannot only take still pictures, but also record videos. The G1X Mark III indeed provides for movie recording, while the 400D does not. The highest resolution format that the G1X Mark III can use is 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the G1X Mark III has an electronic viewfinder (2360k dots), while the 400D 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 400D and Canon G1 X Mark III along with similar information for a selection of comparators.
|Canon 400D||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Canon 400D|
|Canon G1 X Mark III||2360||n||3.0||1040||swivel||Y||1/2000s||9.0||Y||Y||Canon G1 X Mark III|
|Canon 80D||optical||Y||3.0||1040||swivel||Y||1/8000s||7.0||Y||n||Canon 80D|
|Canon 750D||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon 750D|
|Canon 760D||optical||Y||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon 760D|
|Canon 650D||optical||n||3.0||1040||swivel||Y||1/4000s||5.0||Y||n||Canon 650D|
|Canon 1100D||optical||n||2.7||230||fixed||n||1/4000s||3.0||Y||n||Canon 1100D|
|Canon 550D||optical||n||3.0||1040||fixed||n||1/4000s||3.7||Y||n||Canon 550D|
|Canon 500D||optical||n||3.0||920||fixed||n||1/4000s||3.4||Y||n||Canon 500D|
|Canon 450D||optical||n||3.0||230||fixed||n||1/4000s||3.5||Y||n||Canon 450D|
|Canon 40D||optical||Y||3.0||230||fixed||n||1/8000s||6.5||Y||n||Canon 40D|
|Canon 350D||optical||n||1.8||115||fixed||n||1/4000s||3.0||Y||n||Canon 350D|
|Fujifilm X100V||3690||n||3.0||1620||tilting||Y||1/4000s||11.0||Y||n||Fujifilm X100V|
|Fujifilm X100F||2360||n||3.0||1040||fixed||n||1/4000s||8.0||Y||n||Fujifilm X100F|
|Nikon D40X||optical||n||2.5||230||fixed||n||1/4000s||3.0||Y||n||Nikon D40X|
|Sony A6300||2359||n||3.0||922||tilting||n||1/4000s||11.0||Y||n||Sony A6300|
|Sony A6500||2359||n||3.0||922||tilting||Y||1/4000s||11.0||Y||Y||Sony A6500|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The G1X Mark III has a touchscreen, while the 400D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.The G1X Mark III 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 400D does not have a selfie-screen.
The Canon G1 X Mark III 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 G1X Mark III 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 G1 X Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Canon 400D||Y||none||none||-||-||none||2.0||-||-||-||Canon 400D|
|Canon G1 X Mark III||Y||stereo||mono||-||-||micro||2.0||Y||Y||Y||Canon G1 X Mark III|
|Canon 80D||Y||stereo||mono||Y||Y||mini||2.0||Y||Y||-||Canon 80D|
|Canon 750D||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Canon 750D|
|Canon 760D||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Canon 760D|
|Canon 650D||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Canon 650D|
|Canon 1100D||Y||stereo||mono||-||-||mini||2.0||-||-||-||Canon 1100D|
|Canon 550D||Y||stereo||none||Y||-||mini||2.0||-||-||-||Canon 550D|
|Canon 500D||Y||mono||mono||-||-||mini||2.0||-||-||-||Canon 500D|
|Canon 450D||Y||none||none||-||-||mini||2.0||-||-||-||Canon 450D|
|Canon 40D||Y||none||none||-||-||none||2.0||-||-||-||Canon 40D|
|Canon 350D||Y||none||none||-||-||none||2.0||-||-||-||Canon 350D|
|Fujifilm X100V||Y||stereo||mono||Y||-||micro||3.1||Y||-||Y||Fujifilm X100V|
|Fujifilm X100F||Y||stereo||mono||Y||-||micro||2.0||Y||-||-||Fujifilm X100F|
|Nikon D40X||Y||none||none||-||-||none||2.0||-||-||-||Nikon D40X|
|Sony A6300||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony A6300|
|Sony A6500||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony A6500|
It is notable that the G1X Mark III offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the 400D does not offer wifi capability.
The G1X Mark III is a recent model that features in the current product line-up of Canon. In contrast, the 400D has been discontinued (but it 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 how do things add up? Is there a clear favorite between the Canon 400D and the Canon G1 X Mark III? Which camera is better? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Canon EOS 400D:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- 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 200) on a single battery charge.
- More heavily discounted: Has been available for much longer (launched in August 2006).
Advantages of the Canon PowerShot G1 X Mark III:
- More detail: Has more megapixels (24 vs 10.1MP), which boosts linear resolution by 54%.
- 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.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- 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).
- More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
- 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 burst: Shoots at higher frequency (9 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 (115x78mm 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).
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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 modern: Reflects 11 years and 1 month of technical progress since the 400D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the G1X Mark III is the clear winner of the contest (21 : 5 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 G1 X Mark III 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 technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the 400D or the G1X Mark III. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is why hands-on reviews by experts are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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 use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1D Mark III vs Canon 400D
- Canon 4000D vs Canon G1 X Mark III
- Canon 400D vs Canon M5
- Canon 400D vs Leica S2
- Canon 400D vs Olympus E-P3
- Canon 400D vs Panasonic LX5
- Canon 80D vs Canon G1 X Mark III
- Canon G1 X Mark III vs Fujifilm X70
- Canon G1 X Mark III vs Olympus E-410
- Canon G1 X Mark III vs Olympus PEN-F
- Canon G1 X Mark III vs Panasonic TZ200
- Canon G1 X Mark III vs Sony A77 II
Specifications: Canon 400D vs Canon G1 X Mark III
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 G1 X Mark III|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Canon EF mount lenses||24-72mm f/2.8-5.6|
|Launch Date||August 2006||October 2017|
|Launch Price||USD 799||USD 1299|
|Sensor Specs||Canon 400D||Canon G1 X Mark III|
|Sensor Format||APS-C Sensor||APS-C Sensor|
|Sensor Size||22.2 x 14.8 mm||22.3 x 14.9 mm|
|Sensor Area||328.56 mm2||332.27 mm2|
|Sensor Diagonal||26.7 mm||26.8 mm|
|Sensor Resolution||10.1 Megapixels||24 Megapixels|
|Image Resolution||3888 x 2592 pixels||6000 x 4000 pixels|
|Pixel Pitch||5.71 μm||3.72 μm|
|Pixel Density||3.07 MP/cm2||7.22 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100-1600 ISO||100-25600 ISO|
|Image Processor||DIGIC II||DIGIC 7|
|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 G1 X Mark III|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||2360k dots|
|LCD Framing||Live View|
|Rear LCD Size||2.5 inch||3.0 inch|
|LCD Resolution||230k dots||1040k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 400D||Canon G1 X Mark III|
|Autofocus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||No Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/2000/s|
|Continuous Shooting||3 shutter flaps/s||9 shutter flaps/s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|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 G1 X Mark III|
|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 G1 X Mark III|
|Environmental Sealing||Not weather sealed||Weathersealed body|
|Battery Life (CIPA)||370 shots per charge||200 shots per charge|
127 x 84 x 65 mm
(5.0 x 3.3 x 2.6 in)
115 x 78 x 51 mm
(4.5 x 3.1 x 2.0 in)
|Camera Weight||556 g (19.6 oz)||399 g (14.1 oz)|
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