Canon 400D vs R10

The Canon EOS 400D (called Canon XTi in some regions) and the Canon EOS R10 are two digital cameras that were revealed to the public, respectively, in August 2006 and May 2022. The 400D is a DSLR, while the R10 is a mirrorless interchangeable lens camera. Both cameras are equipped with an APS-C sensor. The 400D has a resolution of 10.1 megapixels, whereas the R10 provides 24 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications

Canon 400D		Canon R10
Digital single lens reflex		Mirrorless system camera
Canon EF mount lenses
10.1 MP – APS-C sensor		24 MP – APS-C sensor
no Video		4k/60p Video
ISO 100-1,600		ISO 100-32,000 (100 - 51,200)
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		15 shutter flaps per second
370 shots per battery charge		450 shots per battery charge
127 x 84 x 65 mm, 556 g		123 x 88 x 83 mm, 429 g

Check 400D offers at
ebay.com
Check R10 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS 400D and the Canon EOS R10? 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.

Body comparison

The physical size and weight of the Canon 400D and the Canon R10 are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. 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 R10 is somewhat larger (1 percent) than the Canon 400D. However, the R10 is markedly lighter (23 percent) than the 400D. In this context, it is worth noting that neither the 400D nor the R10 are weather-sealed.

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 Canon NB-2LH battery, while the R10 can take 450 images on a single charge of its Canon LP-E17 power pack. The power pack in the R10 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.

Body Specifications

#		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Canon 400D	127 mm	84 mm	65 mm	556 g	370	n	Aug 2006	799	ebay.com
2.		Canon R10	123 mm	88 mm	83 mm	429 g	450	n	May 2022	979	amazon.com
3.		Canon R50	116 mm	86 mm	69 mm	375 g	230	n	Feb 2023	679	amazon.com
4.		Canon R100	116 mm	86 mm	69 mm	356 g	400	n	May 2023	479	amazon.com
5.		Canon M50	116 mm	88 mm	59 mm	390 g	235	n	Feb 2018	779	ebay.com
6.		Canon SL2	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	549	ebay.com
7.		Canon M5	116 mm	89 mm	61 mm	427 g	295	n	Sep 2016	979	ebay.com
8.		Canon 750D	132 mm	101 mm	78 mm	555 g	440	n	Feb 2015	749	ebay.com
9.		Canon 760D	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	649	ebay.com
10.		Canon 650D	133 mm	100 mm	79 mm	575 g	440	n	Jun 2012	849	ebay.com
11.		Canon 1100D	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
12.		Canon 550D	129 mm	98 mm	62 mm	530 g	440	n	Feb 2010	699	ebay.com
13.		Canon 500D	129 mm	98 mm	62 mm	520 g	400	n	Mar 2009	799	ebay.com
14.		Canon 450D	129 mm	98 mm	62 mm	524 g	500	n	Jan 2008	799	ebay.com
15.		Canon 40D	146 mm	108 mm	74 mm	822 g	750	n	Aug 2007	1,299	ebay.com
16.		Canon 350D	127 mm	94 mm	64 mm	540 g	400	n	Feb 2005	899	ebay.com
17.		Nikon D40X	124 mm	94 mm	64 mm	522 g	520	n	Mar 2007	729	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

Any camera decision will obviously take relative prices into account. 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 400D was launched at a somewhat lower price (by 18 percent) than the R10, which makes it more attractive for photographers on a tight budget. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

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. 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.

Both cameras under consideration feature an APS-C sensor and have a format factor (sometimes also referred to as "crop factor") of 1.6. Within the spectrum of camera sensors, this places the review cameras among the medium-sized sensor cameras that aim to strike a balance between image quality and portability. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Technology-wise, the R10 uses a more advanced image processing engine (DIGIC X) than the 400D (DIGIC II), with benefits for noise reduction, color accuracy, and processing speed.

While the two cameras under review share the same sensor size, the R10 offers a higher resolution of 24 megapixels, compared with 10.1 MP of the 400D. This megapixels advantage translates into a 54 percent gain in linear resolution. On the other hand, these sensor specs imply that the R10 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.70μm versus 5.71μm for the 400D). However, it should be noted that the R10 is much more recent (by 15 years and 9 months) than the 400D, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size.

The resolution advantage of the Canon R10 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the R10 for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 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 R10 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 R10 are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 100-51200.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.

Sensor Characteristics

#		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Canon 400D	APS-C	10.1	3888	2592	none	22.1	11.0	664	62
2.		Canon R10	APS-C	24.0	6000	4000	4k/60p	24.1	13.8	2085	84
3.		Canon R50	APS-C	24.0	6000	4000	4K/30p	24.1	13.9	2168	84
4.		Canon R100	APS-C	24.0	6000	4000	4k/24p	24.1	13.9	2197	84
5.		Canon M50	APS-C	24.0	6000	4000	4K/24p	23.8	13.3	1684	81
6.		Canon SL2	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
7.		Canon M5	APS-C	24.0	6000	4000	1080/60p	23.4	12.4	1262	77
8.		Canon 750D	APS-C	24.0	6000	4000	1080/30p	22.7	12.0	919	71
9.		Canon 760D	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
10.		Canon 650D	APS-C	17.9	5184	3456	1080/30p	21.7	11.2	722	62
11.		Canon 1100D	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
12.		Canon 550D	APS-C	17.9	5184	3456	1080/30p	22.1	11.5	784	66
13.		Canon 500D	APS-C	15.1	4752	3168	1080/20p	21.7	11.5	663	63
14.		Canon 450D	APS-C	12.2	4272	2848	none	21.9	10.8	692	61
15.		Canon 40D	APS-C	10.1	3888	2592	none	22.1	11.3	703	64
16.		Canon 350D	APS-C	8.0	3456	2304	none	21.8	10.8	637	60
17.		Nikon D40X	APS-C	10.0	3872	2592	none	22.4	11.4	516	63
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. The R10 indeed provides for movie recording, while the 400D does not. The highest resolution format that the R10 can use is 4k/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the R10 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 viewfinder in the R10 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 R10 has a higher magnification (0.58x vs 0.49x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The table below summarizes some of the other core capabilities of the Canon 400D and Canon R10 in connection with corresponding information for a sample of similar cameras.

Core Features

#		Camera Model	Viewfinder (Type or 000 dots)	Control Panel (yes/no)	LCD Specifications (inch/000 dots)	LCD Attach- ment	Touch Screen (yes/no)	Max Shutter Speed *	Max Shutter Flaps *	Built-in Flash (yes/no)	Built-in Image Stab
1.		Canon 400D	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
2.		Canon R10	2360	n	3.0 / 1040	swivel	Y	1/8000s	15.0/s	Y	n
3.		Canon R50	2360	n	3.0 / 1620	swivel	Y	1/4000s	12.0/s	Y	n
4.		Canon R100	2360	n	3.0 / 1040	fixed	n	1/4000s	6.5/s	Y	n
5.		Canon M50	2360	n	3.0 / 1040	swivel	Y	1/4000s	10.0/s	Y	n
6.		Canon SL2	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
7.		Canon M5	2360	n	3.2 / 1620	tilting	Y	1/4000s	9.0/s	Y	n
8.		Canon 750D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
9.		Canon 760D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
10.		Canon 650D	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
11.		Canon 1100D	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
12.		Canon 550D	optical	n	3.0 / 1040	fixed	n	1/4000s	3.7/s	Y	n
13.		Canon 500D	optical	n	3.0 / 920	fixed	n	1/4000s	3.4/s	Y	n
14.		Canon 450D	optical	n	3.0 / 230	fixed	n	1/4000s	3.5/s	Y	n
15.		Canon 40D	optical	Y	3.0 / 230	fixed	n	1/8000s	6.5/s	Y	n
16.		Canon 350D	optical	n	1.8 / 115	fixed	n	1/4000s	3.0/s	Y	n
17.		Nikon D40X	optical	n	2.5 / 230	fixed	n	1/4000s	3.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The R10 has a touchscreen, while the 400D has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

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 R10 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 R10 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 R10 uses SDXC cards.

Connectivity comparison

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 R10 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

#		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Canon 400D	Y	- / -	-	-	-	2.0	-	-	-
2.		Canon R10	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
3.		Canon R50	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
4.		Canon R100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
5.		Canon M50	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
6.		Canon SL2	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
7.		Canon M5	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
8.		Canon 750D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Canon 760D	Y	stereo / mono	Y	-	mini	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 R10 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 R10 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 features and operation of the 400D and R10 can be found, respectively, in the Canon 400D Manual (free pdf) or the online Canon R10 Manual.

Review summary

So how do things add up? Is the Canon 400D better than the Canon R10 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Reasons to prefer the Canon EOS 400D:

• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• More affordable: Was introduced into a lower priced segment (18 percent cheaper at launch).
• More heavily discounted: Has been available for much longer (launched in August 2006).

Advantages of the Canon EOS R10:

• 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 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 (0.58x 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 (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 shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (15 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.
• Less heavy: Has a lower weight (by 127g or 23 percent) and is thus easier to take along.
• Longer lasting: Gets more shots (450 versus 370) out of a single battery charge.
• Easier travel charging: Can be conveniently charged via its USB port.
• More legacy lens friendly: Can use many non-native lenses via adapters.
• 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.
• More modern: Reflects 15 years and 9 months of technical progress since the 400D launch.

If the count of individual advantages (bullet points above) is taken as a guide, the R10 is the clear winner of the contest (23 : 3 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 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 R10 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 comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the 400D or the R10 perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews 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], 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.

Expert Camera Reviews

#		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price (USD)	Street Price
1.		Canon 400D	..	+ +	..	+ +	o	4/5	Aug 2006	799	ebay.com
2.		Canon R10	4/5	..	4.5/5	87/100	4/5	4.5/5	May 2022	979	amazon.com
3.		Canon R50	4/5	+ +	4.5/5	84/100	..	4.5/5	Feb 2023	679	amazon.com
4.		Canon R100	3/5	o	4.5/5	79/100	..	3.5/5	May 2023	479	amazon.com
5.		Canon M50	..	+	4/5	79/100	..	3.5/5	Feb 2018	779	ebay.com
6.		Canon SL2	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	549	ebay.com
7.		Canon M5	4/5	+	4/5	82/100	4/5	4/5	Sep 2016	979	ebay.com
8.		Canon 750D	5/5	..	..	75/100	4.5/5	4.5/5	Feb 2015	749	ebay.com
9.		Canon 760D	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	649	ebay.com
10.		Canon 650D	4/5	+ +	..	77/100	4.5/5	4.5/5	Jun 2012	849	ebay.com
11.		Canon 1100D	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
12.		Canon 550D	..	+ +	..	77/100	4/5	4.5/5	Feb 2010	699	ebay.com
13.		Canon 500D	..	+ +	..	74/100	4.5/5	4.5/5	Mar 2009	799	ebay.com
14.		Canon 450D	..	+ +	..	+ +	4/5	4.5/5	Jan 2008	799	ebay.com
15.		Canon 40D	..	+ +	..	+ +	4.5/5	4.5/5	Aug 2007	1,299	ebay.com
16.		Canon 350D	..	80/100	..	+ +	o	..	Feb 2005	899	ebay.com
17.		Nikon D40X	..	79/100	..	+ +	4/5	4/5	Mar 2007	729	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, 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 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.

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Check R10 price at
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Other camera comparisons

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