Canon SX40 vs Nikon P950

The Canon PowerShot SX40 HS and the Nikon Coolpix P950 are two digital cameras that were announced, respectively, in September 2011 and January 2020. Both the SX40 and the P950 are fixed lens compact cameras that are equipped with a 1/2.3-inch sensor. The Canon has a resolution of 12 megapixels, whereas the Nikon 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		Nikon P950
Fixed lens compact camera		Fixed lens compact camera
24-840mm f/2.7-5.8		24-2000mm f/2.8-6.5
12 MP – 1/2.3" sensor		15.9 MP – 1/2.3" sensor
1080/24p Video		4K/30p Video
ISO 100-3,200		ISO 100-6,400 (100 - 12,800)
Electronic viewfinder (202k dots)		Electronic viewfinder (2359k dots)
2.7" LCD – 230k dots		3.2" LCD – 921k dots
Swivel screen (not touch-sensitive)		Swivel screen (not touch-sensitive)
10.3 shutter flaps per second		7 shutter flaps per second
380 shots per battery charge		290 shots per battery charge
123 x 92 x 108 mm, 600 g		140 x 110 x 150 mm, 1005 g

Check SX40 offers at
ebay.com
Check P950 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX40 HS and the Nikon Coolpix P950? 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 Nikon P950. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. 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 Nikon P950 is notably larger (36 percent) than the Canon SX40. Moreover, the P950 is substantially heavier (68 percent) than the SX40. In this context, it is worth noting that neither the SX40 nor the P950 are weather-sealed.

Concerning battery life, the SX40 gets 380 shots out of its Canon NB-10L battery, while the P950 can take 290 images on a single charge of its Nikon EN-EL20a power pack. The power pack in the P950 can be charged via the USB port, which can be very convenient when travelling.

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 SX40	123 mm	92 mm	108 mm	600 g	380	n	Sep 2011	429	ebay.com
2.		Nikon P950	140 mm	110 mm	150 mm	1005 g	290	n	Jan 2020	799	amazon.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 T3	130 mm	100 mm	78 mm	495 g	700	n	Feb 2011	449	ebay.com
10.		Leica V-LUX 2	124 mm	80 mm	95 mm	520 g	410	n	Sep 2010	849	ebay.com
11.		Nikon A1000	114 mm	72 mm	41 mm	330 g	250	n	Jan 2019	429	ebay.com
12.		Nikon B600	122 mm	82 mm	99 mm	500 g	280	n	Jan 2019	349	ebay.com
13.		Nikon P900	140 mm	103 mm	137 mm	899 g	360	n	Mar 2015	599	ebay.com
14.		Nikon P1000	146 mm	119 mm	181 mm	1415 g	250	n	Jul 2018	999	amazon.com
15.		Panasonic FZ100	124 mm	82 mm	92 mm	540 g	410	n	Jul 2010	499	ebay.com
16.		Panasonic FZ150	124 mm	82 mm	92 mm	528 g	410	n	Aug 2011	499	ebay.com
17.		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

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 SX40 was launched at a markedly lower price (by 46 percent) than the P950, 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. 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.

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 P950 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 P950 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 P950 is much more recent (by 8 years and 3 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 Nikon P950 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the P950 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 Nikon Coolpix P950 are ISO 100 to ISO 6400, with the possibility to increase the ISO range to 100-12800.

In terms of underlying technology, the SX40 is build around a BSI-CMOS sensor, while the P950 uses a CMOS 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 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 SX40	1/2.3	12.0	4000	3000	1080/24p	19.6	10.9	409	41
2.		Nikon P950	1/2.3	15.9	4608	3456	4K/30p	20.7	12.3	1189	52
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 T3	APS-C	12.2	4272	2848	720/30p	21.9	11.0	755	62
10.		Leica V-LUX 2	1/2.3	14.0	4320	3240	1080/60i	19.4	10.7	321	39
11.		Nikon A1000	1/2.3	15.9	4608	3456	4K/30p	20.7	12.2	1095	52
12.		Nikon B600	1/2.3	15.9	4608	3456	1080/30p	20.7	12.2	1095	52
13.		Nikon P900	1/2.3	15.9	4608	3456	1080/60p	20.2	11.6	727	47
14.		Nikon P1000	1/2.3	15.9	4608	3456	4K/30p	20.6	12.1	1044	51
15.		Panasonic FZ100	1/2.3	14.0	4320	3240	1080/60i	19.4	10.7	306	39
16.		Panasonic FZ150	1/2.3	12.0	4000	3000	1080/60p	19.4	10.9	132	40
17.		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 cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the P950 provides a better video resolution than the SX40. It can shoot movie footage at 4K/30p, while the Canon is limited to 1080/24p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the P950 offers a substantially higher resolution than the one in the SX40 (2359k vs 202k dots). The following table reports on some other key feature differences and similarities of the Canon SX40, the Nikon P950, 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 SX40	202	n	2.7 / 230	swivel	n	1/3200s	10.3/s	Y	Y
2.		Nikon P950	2359	n	3.2 / 921	swivel	n	1/4000s	7.0/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 T3	optical	n	2.7 / 230	fixed	n	1/4000s	3.0/s	Y	n
10.		Leica V-LUX 2	202	n	3.0 / 460	swivel	n	1/2000s	11.0/s	Y	Y
11.		Nikon A1000	1166	n	3.0 / 1036	tilting	Y	1/4000s	7.0/s	Y	Y
12.		Nikon B600	none	n	3.0 / 921	fixed	n	1/4000s	7.4/s	Y	Y
13.		Nikon P900	921	n	3.0 / 921	swivel	n	1/4000s	7.0/s	Y	Y
14.		Nikon P1000	2359	n	3.2 / 921	swivel	n	1/4000s	7.0/s	Y	Y
15.		Panasonic FZ100	202	n	3.0 / 460	swivel	n	1/2000s	11.0/s	Y	Y
16.		Panasonic FZ150	202	n	3.0 / 460	swivel	n	1/2000s	12.0/s	Y	Y
17.		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.

The Nikon P950 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.

Both the SX40 and the P950 have zoom lenses built in. The SX40 has a 24-840mm f/2.7-5.8 optic and the P950 offers a 24-2000mm f/2.8-6.5 (focal lengths in full frame equivalent terms). Hence, the Canon and Nikon provide the same view at the wide-angle end, but the Nikon has more 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 P950 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 Nikon Coolpix P950 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.		Nikon P950	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
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 T3	Y	stereo / mono	-	-	mini	2.0	-	-	-
10.		Leica V-LUX 2	Y	stereo / mono	-	-	mini	2.0	-	-	-
11.		Nikon A1000	-	stereo / mono	-	-	micro	2.0	Y	-	Y
12.		Nikon B600	-	stereo / mono	-	-	micro	2.0	Y	-	Y
13.		Nikon P900	-	stereo / mono	-	-	micro	2.0	Y	Y	-
14.		Nikon P1000	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
15.		Panasonic FZ100	Y	stereo / mono	-	-	mini	2.0	-	-	-
16.		Panasonic FZ150	Y	stereo / -	-	-	mini	2.0	-	-	-
17.		Panasonic FZ200	Y	stereo / mono	Y	-	mini	2.0	-	-	-

It is notable that the P950 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the SX40 does not provide wifi capability.

The P950 is a recent model that features in the current product line-up of Nikon. In contrast, the SX40 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the SX40 was succeeded by the Canon SX50. Further information on the features and operation of the SX40 and P950 can be found, respectively, in the Canon SX40 Manual (free pdf) or the online Nikon P950 Manual.

Review summary

So how do things add up? Is the Canon SX40 better than the Nikon P950 or vice versa? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Canon PowerShot SX40 HS:

• Faster burst: Shoots at higher frequency (10.3 vs 7 flaps/sec) to capture the decisive moment.
• Better light gathering: Has a lens with a wider maximum aperture (f/2.7 vs f/2.8).
• More compact: Is smaller (123x92mm vs 140x110mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 405g or 40 percent) and hence easier to carry around.
• Longer lasting: Can take more shots (380 versus 290) on a single battery charge.
• More affordable: Was introduced into a lower priced category (46 percent cheaper at launch).
• More heavily discounted: Has been available for much longer (launched in September 2011).

Arguments in favor of the Nikon Coolpix P950:

• More detail: Has more megapixels (15.9 vs 12MP), which boosts linear resolution by 15%.
• Better video: Provides higher definition movie capture (4K/30p vs 1080/24p).
• Better sound: Can connect to an external microphone for higher quality sound recording.
• More detailed viewfinder: Has higher resolution electronic viewfinder (2359k vs 202k dots).
• Larger screen: Has a bigger rear LCD (3.2" vs 2.7") for image review and settings control.
• More detailed LCD: Has a higher resolution rear screen (921k vs 230k dots).
• 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 1/3200s) to freeze action.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
• Easier travel charging: Can be conveniently charged via its USB port.
• 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 8 years and 3 months of technical progress since the SX40 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the P950 is the clear winner of the contest (14 : 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 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 SX40 and the Nikon P950 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 comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the SX40 or the P950 perform in practice. 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.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera 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.		Nikon P950	..	..	3/5	..	4/5	4/5	Jan 2020	799	amazon.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 T3	..	80/100	..	69/100	4/5	4.5/5	Feb 2011	449	ebay.com
10.		Leica V-LUX 2	..	..	..	..	..	..	Sep 2010	849	ebay.com
11.		Nikon A1000	..	+ +	3.5/5	..	3.5/5	3/5	Jan 2019	429	ebay.com
12.		Nikon B600	..	+	..	..	3.5/5	3/5	Jan 2019	349	ebay.com
13.		Nikon P900	..	..	..	77/100	4/5	4/5	Mar 2015	599	ebay.com
14.		Nikon P1000	..	+	3.5/5	73/100	3.5/5	3.5/5	Jul 2018	999	amazon.com
15.		Panasonic FZ100	..	+	..	..	4.5/5	4.5/5	Jul 2010	499	ebay.com
16.		Panasonic FZ150	3/5	+ +	..	76/100	4/5	4.5/5	Aug 2011	499	ebay.com
17.		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 above review scores should be interpreted 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, please note that some of the review sites have changed their methodology and reporting over time.

Check SX40 offers at
ebay.com
Check P950 price at
amazon.com

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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

~

Check SX40 offers at
ebay.com
Check P950 price at
amazon.com

Did you notice an error on this page? If so, please get in touch, so that we can correct the information.