Canon 400D vs Canon R6
The Canon EOS 400D (called Canon XTi in some regions) and the Canon EOS R6 are two digital cameras that were announced, respectively, in August 2006 and July 2020. The 400D is a DSLR, while the Canon R6 is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (400D) and a full frame (Canon R6) sensor. The 400D has a resolution of 10.1 megapixels, whereas the Canon R6 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 EOS R6? 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 R6 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 size 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 R6 is notably larger (27 percent) than the Canon 400D. Moreover, the Canon R6 is markedly heavier (22 percent) than the 400D. It is noteworthy in this context that the Canon R6 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 since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the 400D gets 370 shots out of its NB-2LH battery, while the Canon R6 can take 360 images on a single charge of its LP-E6NH power pack. The power pack in the Canon R6 can be charged via the USB port, which can be very convenient when travelling.
The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 400D||127 mm||84 mm||65 mm||556 g||370||n||Aug 2006||799|
|2.||Canon R6||138 mm||98 mm||88 mm||680 g||360||Y||Jul 2020||2,499|
|3.||Canon R5||138 mm||98 mm||88 mm||738 g||320||Y||Jul 2020||3,899|
|4.||Canon R||139 mm||98 mm||84 mm||660 g||370||Y||Sep 2018||2,299|
|5.||Canon 750D||132 mm||101 mm||78 mm||555 g||440||n||Feb 2015||749|
|6.||Canon 760D||132 mm||101 mm||78 mm||565 g||440||n||Feb 2015||649|
|7.||Canon 6D||145 mm||111 mm||71 mm||770 g||1090||Y||Sep 2012||2,099|
|8.||Canon 650D||133 mm||100 mm||79 mm||575 g||440||n||Jun 2012||849|
|9.||Canon 1100D||130 mm||100 mm||78 mm||495 g||700||n||Feb 2011||449|
|10.||Canon 550D||129 mm||98 mm||62 mm||530 g||440||n||Feb 2010||699|
|11.||Canon 500D||129 mm||98 mm||62 mm||520 g||400||n||Mar 2009||799|
|12.||Canon 450D||129 mm||98 mm||62 mm||524 g||500||n||Jan 2008||799|
|13.||Canon 40D||146 mm||108 mm||74 mm||822 g||750||n||Aug 2007||1,299|
|14.||Canon 350D||127 mm||94 mm||64 mm||540 g||400||n||Feb 2005||899|
|15.||Nikon D40X||124 mm||94 mm||64 mm||522 g||520||n||Mar 2007||729|
|16.||Panasonic S1||149 mm||110 mm||97 mm||1017 g||400||Y||Feb 2019||2,499|
|17.||Sony A99||147 mm||111 mm||78 mm||812 g||500||Y||Sep 2012||2,799|
|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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The 400D was launched at a markedly lower price (by 68 percent) than the Canon R6, which puts it into a different market segment. 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 imaging sensor is a crucial determinant 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. 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 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 R6 a full frame sensor. The sensor area in the Canon R6 is 163 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Technology-wise, the Canon R6 uses a more advanced image processing engine (DIGIC X) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.
With 20MP, the Canon R6 offers a higher resolution than the 400D (10.1MP), but the Canon R6 nevertheless has larger individual pixels (pixel pitch of 6.57μm versus 5.71μm for the 400D) due to its larger sensor. Moreover, the Canon R6 is a much more recent model (by 13 years and 10 months) than the 400D, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Canon R6 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the Canon R6 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 R6 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 EOS R6 are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-204800.
For many cameras, data on sensor performance has been reported by DXO Mark. 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"). Of the two cameras under consideration, the Canon R6 offers substantially better image quality than the 400D (overall score 28 points higher). The advantage is based on 2.1 bits higher color depth, 3.3 EV in additional dynamic range, and 2.4 stops in additional low light sensitivity. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
| DXO |
|2.||Canon R6||Full Frame||20.0||5472||3648||4k/60p||24.2||14.3||3394||90|
|3.||Canon R5||Full Frame||44.8||8192||5464||8k/30p||25.3||14.6||3042||95|
|4.||Canon R||Full Frame||30.1||6720||4480||4K/30p||24.5||13.5||2742||89|
|7.||Canon 6D||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82|
|16.||Panasonic S1||Full Frame||24.0||6000||4000||4K/60p||25.2||14.5||3333||95|
|17.||Sony A99||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89|
Many modern cameras cannot only take still pictures, but also record videos. The Canon R6 indeed provides for movie recording, while the 400D does not. The highest resolution format that the Canon R6 can use is 4k/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the Canon R6 has an electronic viewfinder (5760k 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 viewfinder in the Canon R6 offers a wider field of view (100%) than the one in the 400D (95%), so that a larger proportion of the captured image is visible in the finder. In addition, the viewfinder of the Canon R6 has a higher magnification (0.76x vs 0.49x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Canon 400D and Canon R6 along with similar information for a selection of comparators.
One difference between the cameras concerns the presence of an on-board flash. The 400D has one, while the Canon R6 does not. While the built-in flash of the 400D is not very powerful, it can at times be useful as a fill-in light.The Canon R6 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 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 Canon R6 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 Canon R6 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 Canon R6 uses SDXC cards. The Canon R6 features dual card slots, which can be very useful in case a memory card fails. In contrast, the 400D only has one slot.
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 EOS R6 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
| WiFi |
| NFC |
It is notable that the Canon R6 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 provide wifi capability.
The Canon R6 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 how do things add up? Is there a clear favorite between the Canon 400D and the Canon R6? Which camera is better? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Canon EOS 400D:
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More compact: Is smaller (127x84mm vs 138x98mm) and thus needs less room in the bag.
- Less heavy: Is lighter (by 124g or 18 percent) and hence easier to carry around.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (68 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in August 2006).
Arguments in favor of the Canon EOS R6:
- More detail: Has more megapixels (20 vs 10.1MP), which boosts linear resolution by 41%.
- Better image quality: Scores substantially higher (28 points) in the DXO overall evaluation.
- Richer colors: Generates noticeably more natural colors (2.1 bits more color depth).
- More dynamic range: Captures a broader range of light and dark details (3.3 EV of extra DR).
- Better low-light sensitivity: Can shoot in dim conditions (2.4 stops ISO advantage).
- Better jpgs: Has a more modern image processing engine (DIGIC X vs DIGIC II).
- Broader imaging potential: Can capture not only stills but also 4k/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.
- More complete view: Has a viewfinder with a larger field of view (100% vs 95%).
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.76x vs 0.49x).
- 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 (1620k 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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 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.
- Easier travel charging: Can be conveniently charged via its USB port.
- 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.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Faster data transfer: Supports a more advanced USB protocol (3.2 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.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- More modern: Reflects 13 years and 10 months of technical progress since the 400D launch.
If the number of relative strengths (bullet points above) is taken as a guide, the Canon R6 is the clear winner of the contest (29 : 6 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 400D and the Canon R6 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it says little about, for example, the shooting experience and imaging performance of the 400D and the Canon R6 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 why hands-on reviews by experts are important. The following table reports the overall ratings of the cameras as published by some of the major camera 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 R6||5/5||+ +||90/100||4.5/5||5/5||Jul 2020||2,499|
|3.||Canon R5||4.5/5||..||91/100||4.5/5||4.5/5||Jul 2020||3,899|
|4.||Canon R||4/5||o||79/100||4.5/5||4/5||Sep 2018||2,299|
|5.||Canon 750D||5/5||..||75/100||4.5/5||4.5/5||Feb 2015||749|
|6.||Canon 760D||5/5||+||77/100||4.5/5||4.5/5||Feb 2015||649|
|7.||Canon 6D||5/5||+ +||83/100||4.5/5||4.5/5||Sep 2012||2,099|
|8.||Canon 650D||4/5||+ +||77/100||4.5/5||4.5/5||Jun 2012||849|
|9.||Canon 1100D||..||80/100||69/100||4/5||4.5/5||Feb 2011||449|
|10.||Canon 550D||..||+ +||77/100||4/5||4.5/5||Feb 2010||699|
|11.||Canon 500D||..||+ +||74/100||4.5/5||4.5/5||Mar 2009||799|
|12.||Canon 450D||..||+ +||+ +||4/5||4.5/5||Jan 2008||799|
|13.||Canon 40D||..||+ +||+ +||4.5/5||4.5/5||Aug 2007||1,299|
|14.||Canon 350D||..||80/100||+ +||o||..||Feb 2005||899|
|15.||Nikon D40X||..||79/100||+ +||4/5||4/5||Mar 2007||729|
|16.||Panasonic S1||4.5/5||+ +||88/100||4.5/5||4/5||Feb 2019||2,499|
|17.||Sony A99||5/5||..||84/100||4.5/5||4.5/5||Sep 2012||2,799|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.|
The review scores listed above should be treated with care, 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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. 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 are interested in seeing how other cameras pair up, 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.
Specifications: Canon 400D vs Canon R6
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 R6|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Canon EF mount lenses||Canon RF mount lenses|
|Launch Date||August 2006||July 2020|
|Launch Price||USD 799||USD 2,499|
|Sensor Specs||Canon 400D||Canon R6|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||22.2 x 14.8 mm||36.0 x 24.0 mm|
|Sensor Area||328.56 mm2||864 mm2|
|Sensor Diagonal||26.7 mm||43.3 mm|
|Sensor Resolution||10.1 Megapixels||20 Megapixels|
|Image Resolution||3888 x 2592 pixels||5472 x 3648 pixels|
|Pixel Pitch||5.71 μm||6.57 μm|
|Pixel Density||3.07 MP/cm2||2.31 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||no Video||4k/60p Video|
|ISO Setting||100 - 1,600 ISO||100 - 102,400 ISO|
|ISO Boost||no Enhancement||50 - 204,800 ISO|
|Image Processor||DIGIC II||DIGIC X|
|DXO Sensor Quality (score)||62||90|
|DXO Color Depth (bits)||22.1||24.2|
|DXO Dynamic Range (EV)||11.0||14.3|
|DXO Low Light (ISO)||664||3394|
|Screen Specs||Canon 400D||Canon R6|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||95%||100%|
|Viewfinder Resolution||5760k dots|
|LCD Framing||Live View|
|Rear LCD Size||2.5inch||3.0inch|
|LCD Resolution||230k dots||1620k dots|
|LCD Attachment||Fixed screen||Swivel screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Canon 400D||Canon R6|
|Focus System||Phase-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||no Peaking Feature||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000s||1/8000s|
|Continuous Shooting||3 shutter flaps/s||12 shutter flaps/s|
|Shutter Life Expectancy||50 000 actuations||200 000 actuations|
|Electronic Shutter||no E-Shutter||up to 1/8000s|
|Time-Lapse Photography||no Intervalometer||Intervalometer built-in|
|Image Stabilization||Lens stabilization only||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board Flash|
|Storage Medium||CF cards||SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|Connectivity Specs||Canon 400D||Canon R6|
|USB Connector||USB 2.0||USB 3.2|
|HDMI Port||no HDMI||micro 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 400D||Canon R6|
|Environmental Sealing||not weather sealed||Weathersealed body|
|Battery Life (CIPA)||370 shots per charge||360 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)
138 x 98 x 88 mm
(5.4 x 3.9 x 3.5 in)
|Camera Weight||556 g (19.6 oz)||680 g (24.0 oz)|
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