Canon SX510 vs Nikon L840

The Canon PowerShot SX510 HS and the Nikon Coolpix L840 are two digital cameras that were announced, respectively, in August 2013 and February 2015. Both the SX510 and the L840 are fixed lens compact cameras that are equipped with a 1/2.3-inch sensor. Both cameras offer a resolution of 15.9 megapixels.

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

Headline Specifications

Canon SX510		Nikon L840
Fixed lens compact camera		Fixed lens compact camera
24-720mm f/3.4-5.8		22.5-855mm f/3.0-6.5
15.9 MP – 1/2.3" sensor		15.9 MP – 1/2.3" sensor
1080/24p Video		1080/60i Video
ISO 80-3,200		ISO 100-6,400
No viewfinder, LCD framing		No viewfinder, LCD framing
3.0" LCD – 461k dots		3.0" LCD – 921k dots
Fixed screen (not touch-sensitive)		Tilting screen (no touchscreen)
3.8 shutter flaps per second		7.4 shutter flaps per second
250 shots per battery charge		590 shots per battery charge
104 x 70 x 80 mm, 349 g		113 x 78 x 96 mm, 538 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX510 HS and the Nikon Coolpix L840? 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 SX510 and the Nikon L840 are illustrated 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 width, height and depth measures are rounded to the nearest millimeter.

The L840 can be obtained in two different colors (black, red), while the SX510 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 Nikon L840 is notably larger (21 percent) than the Canon SX510. Moreover, the L840 is substantially heavier (54 percent) than the SX510. In this context, it is worth noting that neither the SX510 nor the L840 are weather-sealed.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras 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 SX510	104 mm	70 mm	80 mm	349 g	250	n	Aug 2013	249	ebay.com
2.		Nikon L840	113 mm	78 mm	96 mm	538 g	590	n	Feb 2015	299	ebay.com
3.		Canon SX60	128 mm	93 mm	114 mm	650 g	340	n	Sep 2014	549	ebay.com
4.		Canon SX400	104 mm	69 mm	80 mm	313 g	190	n	Jul 2014	249	ebay.com
5.		Canon SX410	104 mm	69 mm	85 mm	325 g	185	n	Feb 2015	279	ebay.com
6.		Canon SX420	104 mm	69 mm	85 mm	325 g	195	n	Jan 2016	299	ebay.com
7.		Canon SX430	104 mm	69 mm	85 mm	323 g	195	n	Jan 2017	299	ebay.com
8.		Canon SX500	104 mm	70 mm	80 mm	341 g	195	n	Aug 2012	329	ebay.com
9.		Canon SX520	120 mm	82 mm	92 mm	441 g	210	n	Jul 2014	399	ebay.com
10.		Canon SX530	120 mm	82 mm	92 mm	442 g	210	n	Jan 2015	429	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.		Nikon B500	114 mm	78 mm	95 mm	541 g	600	n	Jan 2016	299	ebay.com
14.		Nikon B600	122 mm	82 mm	99 mm	500 g	280	n	Jan 2019	349	ebay.com
15.		Nikon P900	140 mm	103 mm	137 mm	899 g	360	n	Mar 2015	599	ebay.com
16.		Sony H200	123 mm	83 mm	87 mm	530 g	240	n	Jan 2013	249	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 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 SX510 was launched at a somewhat lower price (by 17 percent) than the L840, 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.

Sensor comparison

The size of the sensor inside a digital camera is one of the key determinants 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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.

The two cameras under review do not only share the same sensor size, but also offer an identical resolution of 15.9 megapixels. This similarity in sensor specs implies that both the SX510 and the L840 have the same pixel density, as well as the same pixel size. It should, however, be noted that the L840 is a somewhat more recent model (by 1 year and 5 months) than the SX510, and its sensor might have benefitted from technological advances during this time. 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 Canon PowerShot SX510 HS has a native sensitivity range from ISO 80 to ISO 3200. The corresponding ISO settings for the Nikon Coolpix L840 are ISO 100 to ISO 6400 (no boost).

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 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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Canon SX510	1/2.3	15.9	4608	3456	1080/24p	20.0	11.3	586	45
2.		Nikon L840	1/2.3	15.9	4608	3456	1080/60i	20.2	11.6	721	47
3.		Canon SX60	1/2.3	14.2	4608	3072	1080/60p	19.2	10.8	127	39
4.		Canon SX400	1/2.3	15.9	4608	3456	720/30p	20.1	11.5	672	46
5.		Canon SX410	1/2.3	19.9	5152	3864	720/30p	20.2	11.6	720	47
6.		Canon SX420	1/2.3	19.9	5152	3864	720/25p	20.3	11.7	806	48
7.		Canon SX430	1/2.3	19.9	5152	3864	720/25p	20.5	11.9	900	49
8.		Canon SX500	1/2.3	15.9	4608	3456	720/30p	19.8	11.1	494	43
9.		Canon SX520	1/2.3	15.9	4608	3456	1080/30p	20.1	11.5	672	46
10.		Canon SX530	1/2.3	15.9	4608	3456	1080/30p	20.2	11.6	712	47
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.		Nikon B500	1/2.3	15.9	4608	3456	1080/60i	20.3	11.7	810	48
14.		Nikon B600	1/2.3	15.9	4608	3456	1080/30p	20.7	12.2	1095	52
15.		Nikon P900	1/2.3	15.9	4608	3456	1080/60p	20.2	11.6	727	47
16.		Sony H200	1/2.3	15.2	5184	2930	720/30p	19.9	11.2	529	44
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 L840 provides a faster frame rate than the SX510. It can shoot movie footage at 1080/60i, while the Canon is limited to 1080/24p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The SX510 and the L840 are similar in the sense that neither of the two has a viewfinder. The images are, thus, framed using live view on the rear LCD. The following table reports on some other key feature differences and similarities of the Canon SX510, the Nikon L840, 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 SX510	none	n	3.0 / 461	fixed	n	1/1600s	3.8/s	Y	Y
2.		Nikon L840	none	n	3.0 / 921	tilting	n	1/4000s	7.4/s	Y	Y
3.		Canon SX60	922	n	3.0 / 922	swivel	n	1/2000s	6.4/s	Y	Y
4.		Canon SX400	none	n	3.0 / 230	fixed	n	1/1600s	0.8/s	Y	Y
5.		Canon SX410	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
6.		Canon SX420	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
7.		Canon SX430	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
8.		Canon SX500	none	n	3.0 / 461	fixed	n	1/1600s	0.8/s	Y	Y
9.		Canon SX520	none	n	3.0 / 461	fixed	n	1/2000s	1.6/s	Y	Y
10.		Canon SX530	none	n	3.0 / 461	fixed	n	1/2000s	1.6/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.		Nikon B500	none	n	3.0 / 921	tilting	n	1/4000s	7.4/s	Y	Y
14.		Nikon B600	none	n	3.0 / 921	fixed	n	1/4000s	7.4/s	Y	Y
15.		Nikon P900	921	n	3.0 / 921	swivel	n	1/4000s	7.0/s	Y	Y
16.		Sony H200	none	n	3.0 / 460	fixed	n	1/1500s	0.8/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

Both the SX510 and the L840 have zoom lenses built in. The SX510 has a 24-720mm f/3.4-5.8 optic and the L840 offers a 22.5-855mm f/3.0-6.5 (focal lengths in full frame equivalent terms). Hence, the Nikon provides a wider angle of view at the short end, as well as more tele-photo reach at the long end than the Canon. The L840 offers the faster maximum aperture.

Concerning the storage of imaging data, both the SX510 and the L840 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 SX510 HS and Nikon Coolpix L840 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 SX510	-	stereo / mono	-	-	mini	2.0	Y	-	-
2.		Nikon L840	-	stereo / mono	-	-	micro	2.0	Y	Y	-
3.		Canon SX60	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
4.		Canon SX400	-	stereo / mono	-	-	-	2.0	-	-	-
5.		Canon SX410	-	stereo / mono	-	-	-	2.0	-	-	-
6.		Canon SX420	-	mono / mono	-	-	-	2.0	Y	Y	-
7.		Canon SX430	-	mono / mono	-	-	-	2.0	Y	Y	-
8.		Canon SX500	-	stereo / mono	-	-	-	2.0	-	-	-
9.		Canon SX520	-	stereo / mono	-	-	mini	2.0	-	-	-
10.		Canon SX530	-	stereo / mono	-	-	mini	2.0	Y	Y	-
11.		Canon SX600	-	mono / mono	-	-	micro	2.0	Y	Y	-
12.		Canon SX700	-	stereo / mono	-	-	micro	2.0	Y	Y	-
13.		Nikon B500	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
14.		Nikon B600	-	stereo / mono	-	-	micro	2.0	Y	-	Y
15.		Nikon P900	-	stereo / mono	-	-	micro	2.0	Y	Y	-
16.		Sony H200	-	mono / mono	-	-	-	2.0	-	-	-

Both the SX510 and the L840 have been discontinued, but can regularly be found used on ebay. The SX510 was replaced by the Canon SX520, while the L840 was followed by the Nikon B500. Further information on the features and operation of the SX510 and L840 can be found, respectively, in the Canon SX510 Manual (free pdf) or the online Nikon L840 Manual.

Review summary

So what is the bottom line? Is the Canon SX510 better than the Nikon L840 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Canon PowerShot SX510 HS:

• More compact: Is smaller (104x70mm vs 113x78mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 189g or 35 percent) and hence easier to carry around.
• More affordable: Was introduced into a lower priced segment (17 percent cheaper at launch).
• More heavily discounted: Has been on the market for longer (launched in August 2013).

Reasons to prefer the Nikon Coolpix L840:

• Better video: Provides higher movie framerates (1080/60i versus 1080/24p).
• More detailed LCD: Has a higher resolution rear screen (921k vs 461k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/1600s) to freeze action.
• Faster burst: Shoots at higher frequency (7.4 vs 3.8 flaps/sec) to capture the decisive moment.
• Better light gathering: Has a lens with a wider maximum aperture (f/3.0 vs f/3.4).
• Wider view: Has a wider-angle lens that facilitates landscape or interior shots.
• More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
• Longer lasting: Gets more shots (590 versus 250) out of a single battery charge.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More modern: Was introduced somewhat (1 year and 5 months) more recently.

If the number of relative strengths (bullet points above) is taken as a guide, the L840 is the clear winner of the contest (11 : 4 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 SX510 and the Nikon L840 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 remains incomplete and does no justice, for example, to the way the SX510 or the L840 perform in practice. 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 why expert reviews are important. 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 SX510	..	+ +	..	..	4.5/5	4/5	Aug 2013	249	ebay.com
2.		Nikon L840	..	+ +	..	..	3.5/5	4/5	Feb 2015	299	ebay.com
3.		Canon SX60	3/5	+ +	..	75/100	4/5	4.5/5	Sep 2014	549	ebay.com
4.		Canon SX400	..	+	..	..	..	..	Jul 2014	249	ebay.com
5.		Canon SX410	..	o	..	..	..	..	Feb 2015	279	ebay.com
6.		Canon SX420	..	..	..	..	..	3/5	Jan 2016	299	ebay.com
7.		Canon SX430	..	..	..	..	3.5/5	3.5/5	Jan 2017	299	ebay.com
8.		Canon SX500	..	+ +	..	..	4/5	4/5	Aug 2012	329	ebay.com
9.		Canon SX520	..	+	..	..	3.5/5	3.5/5	Jul 2014	399	ebay.com
10.		Canon SX530	..	+ +	..	..	4/5	4/5	Jan 2015	429	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.		Nikon B500	..	+	..	..	4/5	3.5/5	Jan 2016	299	ebay.com
14.		Nikon B600	..	+	..	..	3.5/5	3/5	Jan 2019	349	ebay.com
15.		Nikon P900	..	..	..	77/100	4/5	4/5	Mar 2015	599	ebay.com
16.		Sony H200	..	..	..	..	3.5/5	3.5/5	Jan 2013	249	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

Care should be taken when interpreting the review scores above, 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

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Other camera comparisons

Did this review help to inform your camera decision process? If you would like to see a different side-by-side camera review, just make a corresponding selection in the search boxes 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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