Canon SX730 vs Sony NEX-7

The Canon PowerShot SX730 HS and the Sony Alpha NEX-7 are two digital cameras that were officially introduced, respectively, in April 2017 and August 2011. The SX730 is a fixed lens compact, while the NEX-7 is a mirrorless interchangeable lens camera. The cameras are based on a 1/2.3-inch (SX730) and an APS-C (NEX-7) sensor. The Canon has a resolution of 20.2 megapixels, whereas the Sony provides 24 MP.

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

Headline Specifications

Canon SX730		Sony NEX-7
Fixed lens compact camera		Mirrorless system camera
24-960mm f/3.3-6.9		Sony E mount lenses
20.2 MP – 1/2.3" sensor		24 MP – APS-C sensor
1080/60p Video		1080/60i Video
ISO 80-3,200		ISO 100-16,000
No viewfinder, LCD framing		Electronic viewfinder (2359k dots)
3.0" LCD – 922k dots		3.0" LCD – 921k dots
Tilting screen (no touchscreen)		Tilting screen (no touchscreen)
5.9 shutter flaps per second		10 shutter flaps per second
250 shots per battery charge		430 shots per battery charge
110 x 64 x 40 mm, 300 g		120 x 67 x 43 mm, 400 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Canon PowerShot SX730 HS and the Sony Alpha NEX-7? 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 SX730 and the Sony NEX-7. 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 SX730 can be obtained in two different colors (black, silver), while the NEX-7 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 Sony NEX-7 is notably larger (14 percent) than the Canon SX730. In this context, it is worth noting that neither the SX730 nor the NEX-7 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the SX730 has a lens built in, whereas the NEX-7 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 NEX-7 and their specifications in the Sony E-Mount Lens Catalog.

Concerning battery life, the SX730 gets 250 shots out of its Canon NB-13L battery, while the NEX-7 can take 430 images on a single charge of its Sony NP-FW50 power pack. The power pack in the SX730 can be charged via the USB port, so that it is not always necessary to take the battery charger along when travelling.

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 SX730	110 mm	64 mm	40 mm	300 g	250	n	Apr 2017	399	ebay.com
2.		Sony NEX-7	120 mm	67 mm	43 mm	400 g	430	n	Aug 2011	1,349	ebay.com
3.		Canon G7 X Mark II	106 mm	61 mm	42 mm	319 g	265	n	Feb 2016	699	ebay.com
4.		Canon SX420	104 mm	69 mm	85 mm	325 g	195	n	Jan 2016	299	ebay.com
5.		Canon SX430	104 mm	69 mm	85 mm	323 g	195	n	Jan 2017	299	ebay.com
6.		Canon SX540	120 mm	82 mm	92 mm	442 g	205	n	Jan 2016	399	ebay.com
7.		Canon SX710	113 mm	66 mm	35 mm	269 g	230	n	Jan 2015	349	ebay.com
8.		Canon SX720	110 mm	64 mm	36 mm	270 g	250	n	Feb 2016	379	ebay.com
9.		Canon SX740	110 mm	64 mm	40 mm	299 g	265	n	Jul 2018	399	amazon.com
10.		Fujifilm X100	126 mm	75 mm	54 mm	445 g	300	n	Sep 2010	1,199	ebay.com
11.		Panasonic TS7	117 mm	76 mm	37 mm	319 g	300	Y	May 2018	449	ebay.com
12.		Panasonic ZS70	112 mm	67 mm	41 mm	322 g	380	n	Apr 2017	449	ebay.com
13.		Sony A3000	128 mm	91 mm	85 mm	411 g	470	n	Aug 2013	329	ebay.com
14.		Sony A6000	120 mm	67 mm	45 mm	344 g	360	n	Feb 2014	599	ebay.com
15.		Sony A6400	120 mm	67 mm	50 mm	403 g	410	Y	Jan 2019	899	amazon.com
16.		Sony HX99	102 mm	58 mm	36 mm	242 g	370	n	Aug 2018	449	ebay.com
17.		Sony RX1	113 mm	65 mm	70 mm	482 g	270	n	Sep 2012	2,799	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 SX730 was launched at a lower price than the NEX-7, 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 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. 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 SX730 features a 1/2.3-inch sensor and the Sony NEX-7 an APS-C sensor. The sensor area in the NEX-7 is 1204 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 1.5. The sensor in the SX730 has a native 4:3 aspect ratio, while the one in the NEX-7 offers a 3:2 aspect.

With 24MP, the NEX-7 offers a higher resolution than the SX730 (20.2MP), but the NEX-7 nevertheless has larger individual pixels (pixel pitch of 3.90μm versus 1.18μm for the SX730) due to its larger sensor. However, the SX730 is a much more recent model (by 5 years and 7 months) than the NEX-7, and its sensor will have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the SX730 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony NEX-7 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the NEX-7 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 SX730 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

The Canon PowerShot SX730 HS has a native sensitivity range from ISO 80 to ISO 3200. The corresponding ISO settings for the Sony Alpha NEX-7 are ISO 100 to ISO 16000 (no boost).

In terms of underlying technology, the SX730 is build around a BSI-CMOS sensor, while the NEX-7 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 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 SX730	1/2.3	20.2	5184	3888	1080/60p	20.5	11.9	924	50
2.		Sony NEX-7	APS-C	24.0	6000	4000	1080/60i	24.1	13.4	1016	81
3.		Canon G7 X Mark II	1-inch	20.0	5472	3648	1080/60p	21.8	11.9	260	62
4.		Canon SX420	1/2.3	19.9	5152	3864	720/25p	20.3	11.7	806	48
5.		Canon SX430	1/2.3	19.9	5152	3864	720/25p	20.5	11.9	900	49
6.		Canon SX540	1/2.3	20.2	5184	3888	1080/60p	20.3	11.7	806	48
7.		Canon SX710	1/2.3	20.2	5184	3888	1080/60p	20.2	11.6	712	47
8.		Canon SX720	1/2.3	20.2	5184	3888	1080/60p	20.3	11.8	817	48
9.		Canon SX740	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1050	51
10.		Fujifilm X100	APS-C	12.2	4288	2848	720/30p	22.9	12.4	1001	73
11.		Panasonic TS7	1/2.3	20.2	5184	3888	4K/30p	20.6	12.1	1028	51
12.		Panasonic ZS70	1/2.3	20.2	5184	3888	4K/30p	19.1	10.6	106	36
13.		Sony A3000	APS-C	19.8	5456	3632	1080/60i	23.7	12.8	1068	78
14.		Sony A6000	APS-C	24.0	6000	4000	1080/60p	24.1	13.1	1347	82
15.		Sony A6400	APS-C	24.0	6000	4000	4K/30p	24.0	13.6	1431	83
16.		Sony HX99	1/2.3	18.0	4896	3672	4K/30p	20.6	12.1	1058	51
17.		Sony RX1	Full Frame	24.0	6000	4000	1080/60p	25.1	14.3	2534	93
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 SX730 provides a higher frame rate than the NEX-7. It can shoot video footage at 1080/60p, while the Sony is limited to 1080/60i.

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the NEX-7 has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the SX730 relies on live view and the rear LCD for framing. The adjacent table lists some of the other core features of the Canon SX730 and Sony NEX-7 along with similar information for a selection of comparators.

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 SX730	none	n	3.0 / 922	tilting	n	1/3200s	5.9/s	Y	Y
2.		Sony NEX-7	2359	n	3.0 / 921	tilting	n	1/4000s	10.0/s	Y	n
3.		Canon G7 X Mark II	none	n	3.0 / 1040	tilting	Y	1/2000s	8.0/s	Y	Y
4.		Canon SX420	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
5.		Canon SX430	none	n	3.0 / 230	fixed	n	1/4000s	0.5/s	Y	Y
6.		Canon SX540	none	n	3.0 / 461	fixed	n	1/2000s	5.9/s	Y	Y
7.		Canon SX710	none	n	3.0 / 922	fixed	n	1/3200s	6.0/s	Y	Y
8.		Canon SX720	none	n	3.0 / 922	fixed	n	1/3200s	5.9/s	Y	Y
9.		Canon SX740	none	n	3.0 / 922	tilting	n	1/3200s	10.0/s	Y	Y
10.		Fujifilm X100	1440	n	2.8 / 460	fixed	n	1/4000s	5.0/s	Y	n
11.		Panasonic TS7	1170	n	3.0 / 1040	fixed	n	1/1300s	10.0/s	Y	Y
12.		Panasonic ZS70	1166	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
13.		Sony A3000	202	n	3.0 / 230	fixed	n	1/4000s	2.5/s	Y	n
14.		Sony A6000	1440	n	3.0 / 922	tilting	n	1/4000s	11.0/s	Y	n
15.		Sony A6400	2359	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	n
16.		Sony HX99	638	n	3.0 / 922	tilting	Y	1/2000s	10.0/s	Y	Y
17.		Sony RX1	optional	n	3.0 / 1229	fixed	n	1/4000s	5.0/s	Y	n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

The SX730 writes its imaging data to SDXC cards, while the NEX-7 uses SDXC or Memory Stick PRO Duo 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 SX730 HS and Sony Alpha NEX-7 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 SX730	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
2.		Sony NEX-7	Y	stereo / mono	Y	-	mini	2.0	-	-	-
3.		Canon G7 X Mark II	-	stereo / mono	-	-	micro	2.0	Y	Y	-
4.		Canon SX420	-	mono / mono	-	-	-	2.0	Y	Y	-
5.		Canon SX430	-	mono / mono	-	-	-	2.0	Y	Y	-
6.		Canon SX540	-	stereo / mono	-	-	mini	2.0	Y	Y	-
7.		Canon SX710	-	stereo / mono	-	-	micro	2.0	Y	Y	-
8.		Canon SX720	-	stereo / mono	-	-	micro	2.0	Y	Y	-
9.		Canon SX740	-	stereo / mono	-	-	micro	2.0	Y	-	Y
10.		Fujifilm X100	Y	stereo / -	-	-	mini	2.0	-	-	-
11.		Panasonic TS7	-	stereo / mono	-	-	micro	2.0	Y	-	-
12.		Panasonic ZS70	-	stereo / mono	-	-	micro	2.0	Y	-	-
13.		Sony A3000	Y	stereo / mono	-	-	mini	2.0	-	-	-
14.		Sony A6000	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
15.		Sony A6400	Y	stereo / mono	Y	-	micro	2.0	Y	Y	Y
16.		Sony HX99	-	stereo / mono	-	-	micro	2.0	Y	Y	Y
17.		Sony RX1	Y	stereo / mono	Y	-	mini	2.0	-	-	-

It is notable that the SX730 offers wifi support, while the NEX-7 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the SX730 and the NEX-7 have been discontinued, but can regularly be found used on ebay. The SX730 was replaced by the Canon SX730 HS, while the NEX-7 does not have a direct successor. Further information on the features and operation of the SX730 and NEX-7 can be found, respectively, in the Canon SX730 Manual (free pdf) or the online Sony NEX-7 Manual.

Review summary

So how do things add up? Is there a clear favorite between the Canon SX730 and the Sony NEX-7? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Advantages of the Canon PowerShot SX730 HS:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better video: Provides higher movie framerates (1080/60p versus 1080/60i).
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Ready to shoot: Has a lens built-in, whereas the NEX-7 requires a separate lens.
• More compact: Is smaller (110x64mm vs 120x67mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the NEX-7).
• Easier travel charging: Can be conveniently charged via its USB port.
• Sharper images: Has hand-shake reducing image stabilization built-in.
• 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.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Reflects 5 years and 7 months of technical progress since the NEX-7 launch.

Arguments in favor of the Sony Alpha NEX-7:

• More detail: Has more megapixels (24 vs 20.2MP), which boosts linear resolution by 11%.
• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
• Richer colors: The pixel size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
• Better sound: Can connect to an external microphone for higher quality sound recording.
• Easier framing: Has an electronic viewfinder for image composition and settings control.
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/3200s) to freeze action.
• Faster burst: Shoots at higher frequency (10 vs 5.9 flaps/sec) to capture the decisive moment.
• More flexible: Takes interchangeable lenses and can thus be used with specialty optics.
• Longer lasting: Gets more shots (430 versus 250) out of a single battery charge.
• Better lighting: Features a hotshoe and can thus hold and trigger an external flash gun.
• More heavily discounted: Has been around for much longer (launched in August 2011).

If the count of relative strengths (bullet points above) is taken as a measure, the NEX-7 comes out slightly ahead of the SX730 (14 : 13 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 SX730 and the Sony NEX-7 place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best Mirrorless Interchangeable Lens 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 says little about, for example, the shooting experience and imaging performance of the SX730 and the NEX-7 in practical situations. 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 following table reports the overall ratings of the cameras as published by some of the major 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 SX730	..	+	..	..	4/5	4/5	Apr 2017	399	ebay.com
2.		Sony NEX-7	5/5	+ +	..	81/100	4.5/5	5/5	Aug 2011	1,349	ebay.com
3.		Canon G7 X Mark II	4.5/5	+ +	..	81/100	4.5/5	4.5/5	Feb 2016	699	ebay.com
4.		Canon SX420	..	..	..	..	..	3/5	Jan 2016	299	ebay.com
5.		Canon SX430	..	..	..	..	3.5/5	3.5/5	Jan 2017	299	ebay.com
6.		Canon SX540	..	..	..	..	..	..	Jan 2016	399	ebay.com
7.		Canon SX710	..	+	..	..	4/5	3.5/5	Jan 2015	349	ebay.com
8.		Canon SX720	..	+	..	..	4/5	4.5/5	Feb 2016	379	ebay.com
9.		Canon SX740	..	+	3.5/5	..	4/5	4/5	Jul 2018	399	amazon.com
10.		Fujifilm X100	3/5	..	..	75/100	4/5	5/5	Sep 2010	1,199	ebay.com
11.		Panasonic TS7	..	+	..	..	..	3.5/5	May 2018	449	ebay.com
12.		Panasonic ZS70	..	+ +	..	..	4/5	4/5	Apr 2017	449	ebay.com
13.		Sony A3000	3/5	+	..	..	4/5	4/5	Aug 2013	329	ebay.com
14.		Sony A6000	5/5	+	4.5/5	80/100	4.5/5	5/5	Feb 2014	599	ebay.com
15.		Sony A6400	4/5	+	4/5	85/100	4.5/5	4/5	Jan 2019	899	amazon.com
16.		Sony HX99	..	..	..	..	4/5	4.5/5	Aug 2018	449	ebay.com
17.		Sony RX1	5/5	..	..	79/100	4/5	4.5/5	Sep 2012	2,799	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

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 make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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