Canon SL2 vs SX400

The Canon EOS Rebel SL2 (called Canon 200D in some regions) and the Canon PowerShot SX400 IS are two digital cameras that were officially introduced, respectively, in June 2017 and July 2014. The SL2 is a DSLR, while the SX400 is a fixed lens compact. The cameras are based on an APS-C (SL2) and a 1/2.3-inch (SX400) sensor. The SL2 has a resolution of 24 megapixels, whereas the SX400 provides 15.9 MP.

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

Headline Specifications

Canon SL2		Canon SX400
Digital single lens reflex		Fixed lens compact camera
Canon EF mount lenses		24-720mm f/3.4-5.8
24 MP – APS-C sensor		15.9 MP – 1/2.3" sensor
1080/60p Video		720/30p Video
ISO 100-25,600 (100 - 51,200)		ISO 100-1,600
Optical viewfinder		No viewfinder, LCD framing
3.0" LCD – 1040k dots		3.0" LCD – 230k dots
Swivel touchscreen		Fixed screen (not touch-sensitive)
5 shutter flaps per second		0.8 shutter flaps per second
650 shots per battery charge		190 shots per battery charge
122 x 93 x 70 mm, 453 g		104 x 69 x 80 mm, 313 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel SL2 and the Canon PowerShot SX400 IS? 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 side-by-side display below illustrates the physical size and weight of the Canon SL2 and the Canon SX400. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All width, height and depth dimensions are rounded to the nearest millimeter.

The SL2 can be obtained in two different colors (black, white), while the SX400 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 SX400 is considerably smaller (37 percent) than the Canon SL2. In this context, it is worth noting that neither the SL2 nor the SX400 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX400 has a lens built in, whereas the SL2 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 SL2 and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the SL2 gets 650 shots out of its LP-E17 battery, while the SX400 can take 190 images on a single charge of its NB-11LH power pack.

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.

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 SL2	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	549	ebay.com
2.		Canon SX400	104 mm	69 mm	80 mm	313 g	190	n	Jul 2014	249	ebay.com
3.		Canon SL3	122 mm	93 mm	70 mm	449 g	1070	n	Apr 2019	599	amazon.com
4.		Canon T7	129 mm	101 mm	78 mm	475 g	500	n	Feb 2018	449	amazon.com
5.		Canon 77D	131 mm	100 mm	76 mm	540 g	600	n	Feb 2017	899	ebay.com
6.		Canon M6	112 mm	68 mm	45 mm	390 g	295	n	Feb 2017	779	ebay.com
7.		Canon M100	108 mm	67 mm	35 mm	302 g	295	n	Aug 2017	499	ebay.com
8.		Canon T7i	131 mm	100 mm	76 mm	532 g	600	n	Feb 2017	749	ebay.com
9.		Canon M5	116 mm	89 mm	61 mm	427 g	295	n	Sep 2016	979	ebay.com
10.		Canon T6	129 mm	101 mm	78 mm	485 g	500	n	Mar 2016	449	ebay.com
11.		Canon T6s	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	649	ebay.com
12.		Canon SX410	104 mm	69 mm	85 mm	325 g	185	n	Feb 2015	279	ebay.com
13.		Canon SX700	113 mm	66 mm	35 mm	269 g	250	n	Feb 2014	349	ebay.com
14.		Canon SX600	104 mm	61 mm	26 mm	188 g	290	n	Jan 2014	249	ebay.com
15.		Canon SX60	128 mm	93 mm	114 mm	650 g	340	n	Sep 2014	549	ebay.com
16.		Canon SX510	104 mm	70 mm	80 mm	349 g	250	n	Aug 2013	249	ebay.com
17.		Canon SL1	117 mm	91 mm	69 mm	407 g	380	n	Mar 2013	549	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 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 SX400 was launched at a lower price than the SL2, 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.

Sensor comparison

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 SL2 features an APS-C sensor and the Canon SX400 a 1/2.3-inch sensor. The sensor area in the SX400 is 92 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 5.6. The sensor in the SL2 has a native 3:2 aspect ratio, while the one in the SX400 offers a 4:3 aspect.

In terms of chip-set technology, the SL2 uses a more advanced image processing engine (DIGIC 7) than the SX400 (DIGIC 4+), with benefits for noise reduction, color accuracy, and processing speed.

With 24MP, the SL2 offers a higher resolution than the SX400 (15.9MP), but the SL2 nevertheless has larger individual pixels (pixel pitch of 3.72μm versus 1.33μm for the SX400) due to its larger sensor. Moreover, the SL2 is a much more recent model (by 2 years and 11 months) than the SX400, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the SX400 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Canon SL2 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SL2 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 SX400 are 23 x 17.3 inches or 58.5 x 43.9 cm for good quality, 18.4 x 13.8 inches or 46.8 x 35.1 cm for very good quality, and 15.4 x 11.5 inches or 39 x 29.3 cm for excellent quality prints.

The SL2 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS Rebel SL2 has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 100-51200. The corresponding ISO settings for the Canon PowerShot SX400 IS are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the SL2 is build around a CMOS sensor, while the SX400 uses a CCD imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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 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 SL2	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
2.		Canon SX400	1/2.3	15.9	4608	3456	720/30p	20.1	11.5	672	46
3.		Canon SL3	APS-C	24.0	6000	4000	4K/25p	23.9	13.4	1791	82
4.		Canon T7	APS-C	24.0	6000	4000	1080/30p	23.8	13.3	1684	81
5.		Canon 77D	APS-C	24.0	6000	4000	1080/60p	23.6	13.3	971	78
6.		Canon M6	APS-C	24.0	6000	4000	1080/60p	23.4	12.6	1317	78
7.		Canon M100	APS-C	24.0	6000	4000	1080/60p	23.5	12.9	1272	78
8.		Canon T7i	APS-C	24.0	6000	4000	1080/60p	23.7	13.1	1586	80
9.		Canon M5	APS-C	24.0	6000	4000	1080/60p	23.4	12.4	1262	77
10.		Canon T6	APS-C	17.9	5184	3456	1080/30p	22.0	11.7	781	66
11.		Canon T6s	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
12.		Canon SX410	1/2.3	19.9	5152	3864	720/30p	20.2	11.6	720	47
13.		Canon SX700	1/2.3	15.9	4608	3456	1080/60p	20.1	11.4	629	45
14.		Canon SX600	1/2.3	15.9	4608	3456	1080/30p	20.0	11.4	620	45
15.		Canon SX60	1/2.3	14.2	4608	3072	1080/60p	19.2	10.8	127	39
16.		Canon SX510	1/2.3	15.9	4608	3456	1080/24p	20.0	11.3	586	45
17.		Canon SL1	APS-C	17.9	5184	3456	1080/30p	21.8	11.3	843	63
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 also of capturing video footage. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the SL2 provides a higher video resolution than the SX400. It can shoot video footage at 1080/60p, while the SX400 is limited to 720/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the SL2 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the SX400 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 SL2, the Canon SX400, and comparable 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 SL2	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
2.		Canon SX400	none	n	3.0 / 230	fixed	n	1/1600s	0.8/s	Y	Y
3.		Canon SL3	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
4.		Canon T7	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
5.		Canon 77D	optical	Y	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
6.		Canon M6	optional	n	3.0 / 1040	tilting	Y	1/4000s	9.0/s	Y	n
7.		Canon M100	none	n	3.0 / 1040	tilting	Y	1/4000s	6.1/s	Y	n
8.		Canon T7i	optical	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
9.		Canon M5	2360	n	3.2 / 1620	tilting	Y	1/4000s	9.0/s	Y	n
10.		Canon T6	optical	n	3.0 / 920	fixed	n	1/4000s	3.0/s	Y	n
11.		Canon T6s	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
12.		Canon SX410	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
13.		Canon SX700	none	n	3.0 / 922	fixed	n	1/3200s	8.5/s	Y	Y
14.		Canon SX600	none	n	3.0 / 461	fixed	n	1/2000s	3.9/s	Y	Y
15.		Canon SX60	922	n	3.0 / 922	swivel	n	1/2000s	6.4/s	Y	Y
16.		Canon SX510	none	n	3.0 / 461	fixed	n	1/1600s	3.8/s	Y	Y
17.		Canon SL1	optical	n	3.0 / 1040	fixed	Y	1/4000s	4.9/s	Y	n
Notes: *) 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 SL2 has a touchscreen, while the SX400 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The Canon SL2 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 SL2 and the SX400 write their files to SDXC cards. The SL2 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX400 cannot take advantage of Ultra High Speed SD 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 Rebel SL2 and Canon PowerShot SX400 IS 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 SL2	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
2.		Canon SX400	-	stereo / mono	-	-	-	2.0	-	-	-
3.		Canon SL3	Y	stereo / mono	Y	-	mini	2.0	Y	-	Y
4.		Canon T7	Y	mono / mono	-	-	mini	2.0	Y	Y	-
5.		Canon 77D	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
6.		Canon M6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
7.		Canon M100	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
8.		Canon T7i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
9.		Canon M5	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
10.		Canon T6	Y	mono / mono	-	-	mini	2.0	Y	Y	-
11.		Canon T6s	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
12.		Canon SX410	-	stereo / mono	-	-	-	2.0	-	-	-
13.		Canon SX700	-	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Canon SX600	-	mono / mono	-	-	micro	2.0	Y	Y	-
15.		Canon SX60	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
16.		Canon SX510	-	stereo / mono	-	-	mini	2.0	Y	-	-
17.		Canon SL1	Y	mono / mono	Y	-	mini	2.0	-	-	-

It is notable that the SL2 has a hotshoe, while the SX400 does not. This socket makes it possible to easily attach optional accessories, such as an external flash gun.

Both the SL2 and the SX400 have been discontinued, but can regularly be found used on ebay. The SX400 was replaced by the Canon SX410, while the SL2 was followed by the Canon SL2. Further information on the features and operation of the SL2 and SX400 can be found, respectively, in the Canon SL2 Manual (free pdf) or the online Canon SX400 Manual.

Review summary

So how do things add up? Is the Canon SL2 better than the Canon SX400 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Canon EOS Rebel SL2:

• More detail: Offers more megapixels (24 vs 15.9MP) with a 25% higher linear resolution.
• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better image quality: Features a larger and more technologically advanced imaging 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 jpgs: Has a more modern image processing engine (DIGIC 7 vs DIGIC 4+).
• Better video: Provides higher definition movie capture (1080/60p vs 720/30p).
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Better sound: Can connect to an external microphone for higher quality sound recording.
• Easier framing: Has an optical viewfinder for image composition 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: Is equipped with a touch-sensitive rear screen to facilitate handling.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/1600s) to freeze action.
• Faster burst: Shoots at higher frequency (5 vs 0.8 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More flexible: Can take a variety of interchangeable lenses, including specialty optics.
• Longer lasting: Can take more shots (650 versus 190) on a single battery charge.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• 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.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More modern: Reflects 2 years and 11 months of technical progress since the SX400 launch.

Reasons to prefer the Canon PowerShot SX400 IS:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Ready to shoot: Comes with an integrated lens, while the SL2 requires a separate lens.
• More compact: Is smaller (104x69mm vs 122x93mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight even though it has a lens built in (unlike the SL2).
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More heavily discounted: Has been around for much longer (launched in July 2014).

If the count of relative strengths (bullet points above) is taken as a measure, the SL2 is the clear winner of the match-up (26 : 7 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 SL2 and the Canon SX400 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Superzoom 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 SL2 or the SX400. 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 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], 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 SL2	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	549	ebay.com
2.		Canon SX400	..	+	..	..	..	..	Jul 2014	249	ebay.com
3.		Canon SL3	4/5	o	4.5/5	79/100	4/5	4/5	Apr 2019	599	amazon.com
4.		Canon T7	..	o	3.5/5	..	3.5/5	3.5/5	Feb 2018	449	amazon.com
5.		Canon 77D	4.5/5	..	4/5	82/100	4.5/5	4/5	Feb 2017	899	ebay.com
6.		Canon M6	..	..	..	80/100	4/5	4/5	Feb 2017	779	ebay.com
7.		Canon M100	3/5	+	..	..	4/5	3.5/5	Aug 2017	499	ebay.com
8.		Canon T7i	4.5/5	..	3.5/5	80/100	4.5/5	4/5	Feb 2017	749	ebay.com
9.		Canon M5	4/5	+	4/5	82/100	4/5	4/5	Sep 2016	979	ebay.com
10.		Canon T6	4/5	o	4/5	73/100	4/5	4/5	Mar 2016	449	ebay.com
11.		Canon T6s	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	649	ebay.com
12.		Canon SX410	..	o	..	..	..	..	Feb 2015	279	ebay.com
13.		Canon SX700	..	+ +	..	..	4/5	4/5	Feb 2014	349	ebay.com
14.		Canon SX600	..	+	..	..	4/5	4/5	Jan 2014	249	ebay.com
15.		Canon SX60	3/5	+ +	..	75/100	4/5	4.5/5	Sep 2014	549	ebay.com
16.		Canon SX510	..	+ +	..	..	4.5/5	4/5	Aug 2013	249	ebay.com
17.		Canon SL1	4/5	+	..	78/100	4/5	4/5	Mar 2013	549	ebay.com
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. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

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Other camera comparisons

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