Canon SX510 vs SX740

The Canon PowerShot SX510 HS and the Canon PowerShot SX740 HS are two digital cameras that were officially introduced, respectively, in August 2013 and July 2018. Both the SX510 and the SX740 are fixed lens compact cameras that are equipped with a 1/2.3-inch sensor. The SX510 has a resolution of 15.9 megapixels, whereas the SX740 provides 20.2 MP.

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

Headline Specifications

Canon SX510		Canon SX740
Fixed lens compact camera		Fixed lens compact camera
24-720mm f/3.4-5.8		24-960mm f/3.3-6.9
15.9 MP – 1/2.3" sensor		20.2 MP – 1/2.3" sensor
1080/24p Video		4K/30p Video
ISO 80-3,200		ISO 100-3,200
No viewfinder, LCD framing		No viewfinder, LCD framing
3.0" LCD – 461k dots		3.0" LCD – 922k dots
Fixed screen (not touch-sensitive)		Tilting screen (no touchscreen)
3.8 shutter flaps per second		10 shutter flaps per second
250 shots per battery charge		265 shots per battery charge
104 x 70 x 80 mm, 349 g		110 x 64 x 40 mm, 299 g

Check SX510 offers at
ebay.com
Check SX740 price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX510 HS and the Canon PowerShot SX740 HS? 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 Canon SX740 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 SX740 can be obtained in two different colors (black, silver), 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 Canon SX740 is somewhat smaller (3 percent) than the Canon SX510. Moreover, the SX740 is markedly lighter (14 percent) than the SX510. In this context, it is worth noting that neither the SX510 nor the SX740 are weather-sealed.

Concerning battery life, the SX510 gets 250 shots out of its Canon NB-6LH battery, while the SX740 can take 265 images on a single charge of its Canon NB-13L power pack. The power pack in the SX740 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. 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	Street Price
1.		Canon SX510	104 mm	70 mm	80 mm	349 g	250	n	Aug 2013	US$ 249	ebay.com
2.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	US$ 399	amazon.com
3.		Canon G5 X Mark II	111 mm	61 mm	46 mm	340 g	230	n	Jul 2019	US$ 899	ebay.com
4.		Canon G7 X Mark III	105 mm	61 mm	41 mm	304 g	235	n	Jul 2019	US$ 749	amazon.com
5.		Canon G15	107 mm	76 mm	40 mm	352 g	350	n	Sep 2012	US$ 499	ebay.com
6.		Canon M	109 mm	66 mm	32 mm	298 g	230	n	Jul 2012	US$ 599	ebay.com
7.		Canon SX400	104 mm	69 mm	80 mm	313 g	190	n	Jul 2014	US$ 249	ebay.com
8.		Canon SX420	104 mm	69 mm	85 mm	325 g	195	n	Jan 2016	US$ 299	ebay.com
9.		Canon SX500	104 mm	70 mm	80 mm	341 g	195	n	Aug 2012	US$ 329	ebay.com
10.		Canon SX520	120 mm	82 mm	92 mm	441 g	210	n	Jul 2014	US$ 399	ebay.com
11.		Canon SX600	104 mm	61 mm	26 mm	188 g	290	n	Jan 2014	US$ 249	ebay.com
12.		Canon SX700	113 mm	66 mm	35 mm	269 g	250	n	Feb 2014	US$ 349	ebay.com
13.		Canon SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	US$ 399	ebay.com
14.		Leica X2	124 mm	69 mm	52 mm	345 g	450	n	May 2012	US$ 1 999	ebay.com
15.		Panasonic TZ90	112 mm	67 mm	41 mm	322 g	380	n	Apr 2017	US$ 449	ebay.com
16.		Panasonic TZ95	112 mm	69 mm	42 mm	327 g	380	n	Feb 2019	US$ 449	ebay.com
17.		Sony H200	123 mm	83 mm	87 mm	530 g	240	n	Jan 2013	US$ 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

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 SX510 was launched at a markedly lower price (by 38 percent) than the SX740, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. 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 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. 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 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.

Technology-wise, the SX740 uses a more advanced image processing engine (DIGIC 8) than the SX510 (DIGIC 4), with benefits for noise reduction, color accuracy, and processing speed.

While the two cameras under review share the same sensor size, the SX740 offers a higher resolution of 20.2 megapixels, compared with 15.9 MP of the SX510. This megapixels advantage translates into a 13 percent gain in linear resolution. On the other hand, these sensor specs imply that the SX740 has a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 1.18μm versus 1.33μm for the SX510). However, it should be noted that the SX740 is much more recent (by 4 years and 11 months) than the SX510, 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 SX740 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the SX740 for good quality output (200 dots per inch) amounts to 25.9 x 19.4 inches or 65.8 x 49.4 cm, for very good quality (250 dpi) 20.7 x 15.6 inches or 52.7 x 39.5 cm, and for excellent quality (300 dpi) 17.3 x 13 inches or 43.9 x 32.9 cm. The corresponding values for the Canon SX510 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 Canon PowerShot SX510 HS has a native sensitivity range from ISO 80 to ISO 3200. The corresponding ISO settings for the Canon PowerShot SX740 HS are ISO 100 to ISO 3200 (no boost).

In terms of underlying technology, the SX510 is build around a CMOS sensor, while the SX740 uses a BSI-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 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 SX510	1/2.3	15.9	4608	3456	1080/24p	20.0	11.3	586	45
2.		Canon SX740	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1050	51
3.		Canon G5 X Mark II	1-inch	20.0	5472	3648	4K/30p	22.2	12.4	583	65
4.		Canon G7 X Mark III	1-inch	20.0	5472	3648	4K/30p	22.2	12.4	583	65
5.		Canon G15	1/1.7	12.0	4000	3000	1080/24p	19.9	11.5	165	46
6.		Canon M	APS-C	17.9	5184	3456	1080/30p	22.1	11.2	827	65
7.		Canon SX400	1/2.3	15.9	4608	3456	720/30p	20.1	11.5	672	46
8.		Canon SX420	1/2.3	19.9	5152	3864	720/25p	20.3	11.7	806	48
9.		Canon SX500	1/2.3	15.9	4608	3456	720/30p	19.8	11.1	494	43
10.		Canon SX520	1/2.3	15.9	4608	3456	1080/30p	20.1	11.5	672	46
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 SX730	1/2.3	20.2	5184	3888	1080/60p	20.5	11.9	924	50
14.		Leica X2	APS-C	16.1	4928	3264	none	23.2	12.4	1275	74
15.		Panasonic TZ90	1/2.3	20.2	5184	3888	4K/30p	19.1	10.6	106	36
16.		Panasonic TZ95	1/2.3	20.2	5184	3888	4K/30p	20.7	12.2	1103	52
17.		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 SX740 provides a better video resolution than the SX510. It can shoot movie footage at 4K/30p, while the SX510 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 SX740 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 Canon SX740, 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.		Canon SX740	none	n	3.0 / 922	tilting	n	1/3200s	10.0/s	Y	Y
3.		Canon G5 X Mark II	2360	n	3.0 / 1040	tilting	Y	1/2000s	30/s	Y	Y
4.		Canon G7 X Mark III	none	n	3.0 / 1040	tilting	Y	1/2000s	30/s	Y	Y
5.		Canon G15	optical	n	3.0 / 922	fixed	n	1/4000s	2.1/s	Y	Y
6.		Canon M	none	n	3.0 / 1040	fixed	Y	1/4000s	4.3/s	n	n
7.		Canon SX400	none	n	3.0 / 230	fixed	n	1/1600s	0.8/s	Y	Y
8.		Canon SX420	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
9.		Canon SX500	none	n	3.0 / 461	fixed	n	1/1600s	0.8/s	Y	Y
10.		Canon SX520	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.		Canon SX730	none	n	3.0 / 922	tilting	n	1/3200s	5.9/s	Y	Y
14.		Leica X2	optional	n	2.7 / 230	fixed	n	1/2000s	5.0/s	Y	n
15.		Panasonic TZ90	1166	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
16.		Panasonic TZ95	2330	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
17.		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.

The Canon SX740 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 SX510 and the SX740 have zoom lenses built in. The SX510 has a 24-720mm f/3.4-5.8 optic and the SX740 offers a 24-960mm f/3.3-6.9 (focal lengths in full frame equivalent terms). Hence, the SX510 and SX740 provide the same view at the wide-angle end, but the SX740 has more tele-photo reach at the long end. The SX740 offers the faster maximum aperture.

Concerning the storage of imaging data, both the SX510 and the SX740 write their files to SDXC cards. The SX740 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the SX510 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 PowerShot SX510 HS and Canon PowerShot SX740 HS 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.		Canon SX740	-	stereo / mono	-	-	micro	2.0	Y	-	Y
3.		Canon G5 X Mark II	-	stereo / mono	-	-	micro	3.1	Y	-	Y
4.		Canon G7 X Mark III	-	stereo / mono	Y	-	micro	3.1	Y	-	Y
5.		Canon G15	Y	stereo / mono	-	-	mini	2.0	-	-	-
6.		Canon M	Y	stereo / mono	Y	-	mini	2.0	-	-	-
7.		Canon SX400	-	stereo / mono	-	-	-	2.0	-	-	-
8.		Canon SX420	-	mono / mono	-	-	-	2.0	Y	Y	-
9.		Canon SX500	-	stereo / mono	-	-	-	2.0	-	-	-
10.		Canon SX520	-	stereo / mono	-	-	mini	2.0	-	-	-
11.		Canon SX600	-	mono / mono	-	-	micro	2.0	Y	Y	-
12.		Canon SX700	-	stereo / mono	-	-	micro	2.0	Y	Y	-
13.		Canon SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
14.		Leica X2	Y	- / -	-	-	mini	2.0	-	-	-
15.		Panasonic TZ90	-	stereo / mono	-	-	micro	2.0	Y	-	-
16.		Panasonic TZ95	-	stereo / mono	-	-	micro	2.0	Y	-	Y
17.		Sony H200	-	mono / mono	-	-	-	2.0	-	-	-

The SX740 is a recent model that features in the current product line-up of Canon. In contrast, the SX510 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the SX510 was succeeded by the Canon SX520. Further information on the features and operation of the SX510 and SX740 can be found, respectively, in the Canon SX510 Manual (free pdf) or the online Canon SX740 Manual.

Review summary

So what is the bottom line? Is the Canon SX510 better than the Canon SX740 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 affordable: Was introduced into a lower priced category (38 percent cheaper at launch).
• More heavily discounted: Has been available for much longer (launched in August 2013).

Advantages of the Canon PowerShot SX740 HS:

• More detail: Has more megapixels (20.2 vs 15.9MP), which boosts linear resolution by 13%.
• Better jpgs: Has a more modern image processing engine (DIGIC 8 vs DIGIC 4).
• Better video: Provides higher definition movie capture (4K/30p vs 1080/24p).
• More detailed LCD: Has a higher resolution rear screen (922k vs 461k dots).
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster shutter: Has higher mechanical shutter speed (1/3200s vs 1/1600s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 3.8 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• Better light gathering: Has a lens with a wider maximum aperture (f/3.3 vs f/3.4).
• More tele-reach: Has a longer tele-lens for perspective compression and subject magnification.
• Less heavy: Has a lower weight (by 50g or 14 percent) and is thus easier to take along.
• Easier travel charging: Can be conveniently charged via its USB port.
• 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 4 years and 11 months of technical progress since the SX510 launch.

If the number of relative strengths (bullet points above) is taken as a guide, the SX740 is the clear winner of the contest (16 : 2 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 Canon SX740 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 SX740 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 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	Street Price
1.		Canon SX510	..	+ +	..	..	4.5/5	4/5	Aug 2013	US$ 249	ebay.com
2.		Canon SX740	..	+	3.5/5	..	4/5	4/5	Jul 2018	US$ 399	amazon.com
3.		Canon G5 X Mark II	4/5	+	4/5	82/100	..	4/5	Jul 2019	US$ 899	ebay.com
4.		Canon G7 X Mark III	..	+ +	4/5	81/100	4/5	..	Jul 2019	US$ 749	amazon.com
5.		Canon G15	4/5	+	..	76/100	4.5/5	4.5/5	Sep 2012	US$ 499	ebay.com
6.		Canon M	3/5	+	..	..	4/5	4/5	Jul 2012	US$ 599	ebay.com
7.		Canon SX400	..	+	..	..	..	..	Jul 2014	US$ 249	ebay.com
8.		Canon SX420	..	..	..	..	..	3/5	Jan 2016	US$ 299	ebay.com
9.		Canon SX500	..	+ +	..	..	4/5	4/5	Aug 2012	US$ 329	ebay.com
10.		Canon SX520	..	+	..	..	3.5/5	3.5/5	Jul 2014	US$ 399	ebay.com
11.		Canon SX600	..	+	..	..	4/5	4/5	Jan 2014	US$ 249	ebay.com
12.		Canon SX700	..	+ +	..	..	4/5	4/5	Feb 2014	US$ 349	ebay.com
13.		Canon SX730	..	+	..	..	4/5	4/5	Apr 2017	US$ 399	ebay.com
14.		Leica X2	3/5	..	..	..	3/5	4/5	May 2012	US$ 1 999	ebay.com
15.		Panasonic TZ90	..	+ +	4/5	..	4/5	4/5	Apr 2017	US$ 449	ebay.com
16.		Panasonic TZ95	..	+ +	..	..	4.5/5	..	Feb 2019	US$ 449	ebay.com
17.		Sony H200	..	..	..	..	3.5/5	3.5/5	Jan 2013	US$ 249	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, 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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Other camera comparisons

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