Canon SX40 vs SX400

The Canon PowerShot SX40 HS and the Canon PowerShot SX400 IS are two digital cameras that were revealed to the public, respectively, in September 2011 and July 2014. Both the SX40 and the SX400 are fixed lens compact cameras that are equipped with a 1/2.3-inch sensor. The SX40 has a resolution of 12 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 SX40		Canon SX400
Fixed lens compact camera		Fixed lens compact camera
24-840mm f/2.7-5.8		24-720mm f/3.4-5.8
12 MP – 1/2.3" sensor		15.9 MP – 1/2.3" sensor
1080/24p Video		720/30p Video
ISO 100-3,200		ISO 100-1,600
Electronic viewfinder (202k dots)		No viewfinder, LCD framing
2.7" LCD – 230k dots		3.0" LCD – 230k dots
Swivel screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
10.3 shutter flaps per second		0.8 shutter flaps per second
380 shots per battery charge		190 shots per battery charge
123 x 92 x 108 mm, 600 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 PowerShot SX40 HS 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 SX40 and the Canon SX400. 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 SX400 is considerably smaller (37 percent) than the Canon SX40. Moreover, the SX400 is substantially lighter (48 percent) than the SX40. In this context, it is worth noting that neither the SX40 nor the SX400 are weather-sealed.

Concerning battery life, the SX40 gets 380 shots out of its Canon NB-10L battery, while the SX400 can take 190 images on a single charge of its Canon NB-11LH power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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 SX40	123 mm	92 mm	108 mm	600 g	380	n	Sep 2011	429	ebay.com
2.		Canon SX400	104 mm	69 mm	80 mm	313 g	190	n	Jul 2014	249	ebay.com
3.		Canon G1 X	117 mm	81 mm	65 mm	534 g	250	n	Jan 2012	799	ebay.com
4.		Canon SX10	123 mm	88 mm	87 mm	600 g	..	n	Sep 2008	399	ebay.com
5.		Canon SX20	123 mm	88 mm	87 mm	600 g	..	n	Aug 2009	399	ebay.com
6.		Canon SX30	123 mm	92 mm	108 mm	601 g	370	n	Sep 2010	429	ebay.com
7.		Canon SX50	123 mm	87 mm	106 mm	595 g	315	n	Sep 2012	429	ebay.com
8.		Canon SX60	128 mm	93 mm	114 mm	650 g	340	n	Sep 2014	549	ebay.com
9.		Canon SX410	104 mm	69 mm	85 mm	325 g	185	n	Feb 2015	279	ebay.com
10.		Canon SX510	104 mm	70 mm	80 mm	349 g	250	n	Aug 2013	249	ebay.com
11.		Canon SX600	104 mm	61 mm	26 mm	188 g	290	n	Jan 2014	249	ebay.com
12.		Canon SX700	113 mm	66 mm	35 mm	269 g	250	n	Feb 2014	349	ebay.com
13.		Canon T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
14.		Panasonic FZ100	124 mm	82 mm	92 mm	540 g	410	n	Jul 2010	499	ebay.com
15.		Panasonic FZ150	124 mm	82 mm	92 mm	528 g	410	n	Aug 2011	499	ebay.com
16.		Panasonic FZ200	125 mm	87 mm	110 mm	588 g	540	n	Jul 2012	599	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 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 markedly lower price (by 42 percent) than the SX40, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

Sensor comparison

The size of the imaging sensor is a crucial determinant 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. 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 a 1/2.3-inch sensor and have a format factor (sometimes also referred to as "crop factor") of 5.6. Within the spectrum of camera sensors, this places the review cameras among the smaller-sensor digicams that favor affordability and compact design. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

While the two cameras under review share the same sensor size, the SX400 offers a higher resolution of 15.9 megapixels, compared with 12 MP of the SX40. This megapixels advantage translates into a 15 percent gain in linear resolution. On the other hand, these sensor specs imply that the SX400 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.33μm versus 1.53μm for the SX40). However, it should be noted that the SX400 is much more recent (by 2 years and 10 months) than the SX40, and its sensor will have benefitted from technological advances during this time that compensate for the smaller pixel size. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Canon SX400 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX400 for good quality output (200 dots per inch) amounts to 23 x 17.3 inches or 58.5 x 43.9 cm, for very good quality (250 dpi) 18.4 x 13.8 inches or 46.8 x 35.1 cm, and for excellent quality (300 dpi) 15.4 x 11.5 inches or 39 x 29.3 cm. The corresponding values for the Canon SX40 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The Canon PowerShot SX40 HS has a native sensitivity range from ISO 100 to ISO 3200. The corresponding ISO settings for the Canon PowerShot SX400 IS are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the SX40 is build around a BSI-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.

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"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-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 SX40	1/2.3	12.0	4000	3000	1080/24p	19.6	10.9	409	41
2.		Canon SX400	1/2.3	15.9	4608	3456	720/30p	20.1	11.5	672	46
3.		Canon G1 X	1.5-inch	14.2	4352	3264	1080/24p	21.7	10.8	644	60
4.		Canon SX10	1/2.3	10.0	3648	2736	480/30p	19.0	10.3	144	35
5.		Canon SX20	1/2.3	12.0	4000	3000	720/30p	19.2	10.5	225	37
6.		Canon SX30	1/2.3	14.0	4320	3240	720/30p	19.4	10.7	320	39
7.		Canon SX50	1/2.3	12.0	4000	3000	1080/24p	20.3	11.2	179	47
8.		Canon SX60	1/2.3	14.2	4608	3072	1080/60p	19.2	10.8	127	39
9.		Canon SX410	1/2.3	19.9	5152	3864	720/30p	20.2	11.6	720	47
10.		Canon SX510	1/2.3	15.9	4608	3456	1080/24p	20.0	11.3	586	45
11.		Canon SX600	1/2.3	15.9	4608	3456	1080/30p	20.0	11.4	620	45
12.		Canon SX700	1/2.3	15.9	4608	3456	1080/60p	20.1	11.4	629	45
13.		Canon T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
14.		Panasonic FZ100	1/2.3	14.0	4320	3240	1080/60i	19.4	10.7	306	39
15.		Panasonic FZ150	1/2.3	12.0	4000	3000	1080/60p	19.4	10.9	132	40
16.		Panasonic FZ200	1/2.3	12.0	4000	3000	1080/60p	19.1	10.8	114	37
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 two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the SX40 provides a higher video resolution than the SX400. It can shoot video footage at 1080/24p, 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 SX40 has an electronic viewfinder (202k dots), which can be very helpful when shooting in bright sunlight. In contrast, the SX400 relies on live view and the rear LCD for framing. The table below summarizes some of the other core capabilities of the Canon SX40 and Canon SX400 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 SX40	202	n	2.7 / 230	swivel	n	1/3200s	10.3/s	Y	Y
2.		Canon SX400	none	n	3.0 / 230	fixed	n	1/1600s	0.8/s	Y	Y
3.		Canon G1 X	optical	n	3.0 / 922	swivel	n	1/4000s	1.9/s	Y	Y
4.		Canon SX10	202	n	2.5 / 230	swivel	n	1/3200s	0.7/s	Y	Y
5.		Canon SX20	202	n	2.5 / 230	swivel	n	1/3200s	0.7/s	Y	Y
6.		Canon SX30	202	n	2.7 / 230	swivel	n	1/3200s	0.6/s	Y	Y
7.		Canon SX50	202	n	3.0 / 461	swivel	n	1/2000s	2.2/s	Y	Y
8.		Canon SX60	922	n	3.0 / 922	swivel	n	1/2000s	6.4/s	Y	Y
9.		Canon SX410	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
10.		Canon SX510	none	n	3.0 / 461	fixed	n	1/1600s	3.8/s	Y	Y
11.		Canon SX600	none	n	3.0 / 461	fixed	n	1/2000s	3.9/s	Y	Y
12.		Canon SX700	none	n	3.0 / 922	fixed	n	1/3200s	8.5/s	Y	Y
13.		Canon T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
14.		Panasonic FZ100	202	n	3.0 / 460	swivel	n	1/2000s	11.0/s	Y	Y
15.		Panasonic FZ150	202	n	3.0 / 460	swivel	n	1/2000s	12.0/s	Y	Y
16.		Panasonic FZ200	1312	n	3.0 / 460	swivel	n	1/4000s	12.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

Both the SX40 and the SX400 have zoom lenses built in. The SX40 has a 24-840mm f/2.7-5.8 optic and the SX400 offers a 24-720mm f/3.4-5.8 (focal lengths in full frame equivalent terms). Hence, the SX40 and SX400 provide the same view at the wide-angle end, but the SX400 has less tele-photo reach at the long end. The SX40 offers the faster maximum aperture.

Concerning the storage of imaging data, both the SX40 and the SX400 write their files to 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 PowerShot SX40 HS 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 SX40	Y	stereo / mono	-	-	YES	2.0	-	-	-
2.		Canon SX400	-	stereo / mono	-	-	-	2.0	-	-	-
3.		Canon G1 X	Y	stereo / mono	-	-	mini	2.0	-	-	-
4.		Canon SX10	Y	stereo / mono	-	-	-	2.0	-	-	-
5.		Canon SX20	Y	stereo / mono	-	-	YES	2.0	-	-	-
6.		Canon SX30	Y	stereo / mono	-	-	YES	2.0	-	-	-
7.		Canon SX50	Y	stereo / mono	-	-	mini	2.0	-	-	-
8.		Canon SX60	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Canon SX410	-	stereo / mono	-	-	-	2.0	-	-	-
10.		Canon SX510	-	stereo / mono	-	-	mini	2.0	Y	-	-
11.		Canon SX600	-	mono / mono	-	-	micro	2.0	Y	Y	-
12.		Canon SX700	-	stereo / mono	-	-	micro	2.0	Y	Y	-
13.		Canon T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Panasonic FZ100	Y	stereo / mono	-	-	mini	2.0	-	-	-
15.		Panasonic FZ150	Y	stereo / -	-	-	mini	2.0	-	-	-
16.		Panasonic FZ200	Y	stereo / mono	Y	-	mini	2.0	-	-	-

It is notable that the SX40 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 SX40 and the SX400 have been discontinued, but can regularly be found used on ebay. The SX40 was replaced by the Canon SX50, while the SX400 was followed by the Canon SX410. Further information on the features and operation of the SX40 and SX400 can be found, respectively, in the Canon SX40 Manual (free pdf) or the online Canon SX400 Manual.

Review summary

So what conclusions can be drawn? Which of the two cameras – the Canon SX40 or the Canon SX400 – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.

Advantages of the Canon PowerShot SX40 HS:

• Better video: Provides higher definition movie capture (1080/24p vs 720/30p).
• Easier framing: Has an electronic viewfinder for image composition and settings control.
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• Faster shutter: Has higher mechanical shutter speed (1/3200s vs 1/1600s) to freeze action.
• Faster burst: Shoots at higher frequency (10.3 vs 0.8 flaps/sec) to capture the decisive moment.
• Better light gathering: Has a lens with a wider maximum aperture (f/2.7 vs f/3.4).
• More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
• Longer lasting: Can take more shots (380 versus 190) 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 September 2011).

Reasons to prefer the Canon PowerShot SX400 IS:

• More detail: Has more megapixels (15.9 vs 12MP), which boosts linear resolution by 15%.
• Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
• More compact: Is smaller (104x69mm vs 123x92mm) and will fit more readily into a bag.
• Less heavy: Has a lower weight (by 287g or 48 percent) and is thus easier to take along.
• More affordable: Was introduced into a lower priced category (42 percent cheaper at launch).
• More modern: Reflects 2 years and 10 months of technical progress since the SX40 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the SX40 is the clear winner of the match-up (10 : 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 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 SX40 and the Canon SX400 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera listing 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 SX40 and the SX400 in practical situations. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.

Expert reviews

This is where reviews by experts come in. 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 SX40	..	+	..	..	4.5/5	4/5	Sep 2011	429	ebay.com
2.		Canon SX400	..	+	..	..	..	..	Jul 2014	249	ebay.com
3.		Canon G1 X	5/5	+	..	76/100	4/5	4.5/5	Jan 2012	799	ebay.com
4.		Canon SX10	..	+ +	..	..	..	4/5	Sep 2008	399	ebay.com
5.		Canon SX20	..	+ +	..	73/100	..	4/5	Aug 2009	399	ebay.com
6.		Canon SX30	3/5	+ +	..	..	3.5/5	4/5	Sep 2010	429	ebay.com
7.		Canon SX50	3/5	+ +	..	72/100	4.5/5	4.5/5	Sep 2012	429	ebay.com
8.		Canon SX60	3/5	+ +	..	75/100	4/5	4.5/5	Sep 2014	549	ebay.com
9.		Canon SX410	..	o	..	..	..	..	Feb 2015	279	ebay.com
10.		Canon SX510	..	+ +	..	..	4.5/5	4/5	Aug 2013	249	ebay.com
11.		Canon SX600	..	+	..	..	4/5	4/5	Jan 2014	249	ebay.com
12.		Canon SX700	..	+ +	..	..	4/5	4/5	Feb 2014	349	ebay.com
13.		Canon T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
14.		Panasonic FZ100	..	+	..	..	4.5/5	4.5/5	Jul 2010	499	ebay.com
15.		Panasonic FZ150	3/5	+ +	..	76/100	4/5	4.5/5	Aug 2011	499	ebay.com
16.		Panasonic FZ200	3/5	+ +	..	80/100	4.5/5	4.5/5	Jul 2012	599	ebay.com
Note: (+ +) 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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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