Canon R50 vs Sony A7S II

The Canon EOS R50 and the Sony Alpha 7S II are two digital cameras that were officially introduced, respectively, in February 2023 and September 2015. Both the R50 and the A7S II are mirrorless interchangeable lens cameras that are based on an APS-C (R50) and a full frame (A7S II) sensor. The Canon has a resolution of 24 megapixels, whereas the Sony provides 12 MP.

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

Headline Specifications

Canon R50		Sony A7S II
Mirrorless system camera		Mirrorless system camera
		Sony E mount lenses
24 MP – APS-C sensor		12 MP – Full Frame sensor
4K/30p Video		4K/30p Video
ISO 100-32,000 (100 - 51,200)		ISO 100-102,400 (50 - 409,600)
Electronic viewfinder (2360k dots)		Electronic viewfinder (2400k dots)
3.0" LCD – 1620k dots		3.0" LCD – 1229k dots
Swivel touchscreen		Tilting screen (no touchscreen)
12 shutter flaps per second		5 shutter flaps per second
Lens stabilization only		In-body stabilization
not weather sealed		Weathersealed body
230 shots per battery charge		370 shots per battery charge
116 x 86 x 69 mm, 375 g		127 x 96 x 60 mm, 627 g

Check R50 price at
amazon.com
Check A7S II offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS R50 and the Sony Alpha 7S II? 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

An illustration of the physical size and weight of the Canon R50 and the Sony A7S II is provided in the side-by-side display below. 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.

The R50 can be obtained in two different colors (black, white), while the A7S II 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 A7S II is notably larger (22 percent) than the Canon R50. Moreover, the A7S II is substantially heavier (67 percent) than the R50. It is noteworthy in this context that the A7S II is splash and dust-proof, while the R50 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

Concerning battery life, the R50 gets 230 shots out of its Canon LP-E17 battery, while the A7S II can take 370 images on a single charge of its Sony NP-FW50 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient 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	Street Price
1.		Canon R50	116 mm	86 mm	69 mm	375 g	230	n	Feb 2023	US$ 679	amazon.com
2.		Sony A7S II	127 mm	96 mm	60 mm	627 g	370	Y	Sep 2015	US$ 2 999	ebay.com
3.		Canon M3	111 mm	68 mm	44 mm	366 g	250	n	Feb 2015	US$ 679	ebay.com
4.		Canon M5	116 mm	89 mm	61 mm	427 g	295	n	Sep 2016	US$ 979	ebay.com
5.		Canon M6	112 mm	68 mm	45 mm	390 g	295	n	Feb 2017	US$ 779	ebay.com
6.		Canon M50	116 mm	88 mm	59 mm	390 g	235	n	Feb 2018	US$ 779	ebay.com
7.		Canon M50 Mark II	116 mm	88 mm	59 mm	387 g	305	n	Oct 2020	US$ 599	ebay.com
8.		Canon R10	123 mm	88 mm	83 mm	429 g	450	n	May 2022	US$ 979	amazon.com
9.		Canon R100	116 mm	86 mm	69 mm	356 g	400	n	May 2023	US$ 479	amazon.com
10.		Canon SL2	122 mm	93 mm	70 mm	453 g	650	n	Jun 2017	US$ 549	ebay.com
11.		Canon SL3	122 mm	93 mm	70 mm	449 g	1070	n	Apr 2019	US$ 599	amazon.com
12.		Canon T7i	131 mm	100 mm	76 mm	532 g	600	n	Feb 2017	US$ 749	ebay.com
13.		Sony A7 IV	131 mm	96 mm	80 mm	659 g	580	Y	Oct 2021	US$ 2 499	amazon.com
14.		Sony A7R II	127 mm	96 mm	60 mm	625 g	290	Y	Jun 2015	US$ 3 199	ebay.com
15.		Sony A7R IV	129 mm	96 mm	78 mm	665 g	670	Y	Jul 2019	US$ 3 499	ebay.com
16.		Sony A7S	127 mm	94 mm	48 mm	489 g	380	Y	Apr 2014	US$ 2 499	ebay.com
17.		Sony A7S III	127 mm	97 mm	81 mm	699 g	600	Y	Jul 2020	US$ 3 499	amazon.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 manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The R50 was launched at a markedly lower price (by 77 percent) than the A7S II, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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 associated with larger, more expensive camera bodies and lenses.

Of the two cameras under consideration, the Canon R50 features an APS-C sensor and the Sony A7S II a full frame sensor. The sensor area in the A7S II is 155 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Despite having a smaller sensor, the Canon R50 offers a higher resolution of 24 megapixels, compared with 12 MP of the Sony A7S II. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.72μm versus 8.40μm for the A7S II). However, it should be noted that the R50 is much more recent (by 7 years and 4 months) than the A7S II, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently.

The resolution advantage of the Canon R50 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the R50 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 Sony A7S II are 21.2 x 14.2 inches or 53.8 x 36 cm for good quality, 17 x 11.3 inches or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inches or 35.9 x 24 cm for excellent quality prints.

The R50 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS R50 has a native sensitivity range from ISO 100 to ISO 32000, which can be extended to ISO 100-51200. The corresponding ISO settings for the Sony Alpha 7S II are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.

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 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 R50	APS-C	24.0	6000	4000	4K/30p	24.1	13.9	2168	84
2.		Sony A7S II	Full Frame	12.0	4240	2832	4K/30p	23.6	13.3	2993	85
3.		Canon M3	APS-C	24.0	6000	4000	1080/30p	22.8	11.8	1169	72
4.		Canon M5	APS-C	24.0	6000	4000	1080/60p	23.4	12.4	1262	77
5.		Canon M6	APS-C	24.0	6000	4000	1080/60p	23.4	12.6	1317	78
6.		Canon M50	APS-C	24.0	6000	4000	4K/24p	23.8	13.3	1684	81
7.		Canon M50 Mark II	APS-C	24.0	6000	4000	4K/24p	24.0	13.6	1939	83
8.		Canon R10	APS-C	24.0	6000	4000	4k/60p	24.1	13.8	2085	84
9.		Canon R100	APS-C	24.0	6000	4000	4k/24p	24.1	13.9	2197	84
10.		Canon SL2	APS-C	24.0	6000	4000	1080/60p	23.6	13.4	1041	79
11.		Canon SL3	APS-C	24.0	6000	4000	4K/25p	23.9	13.4	1791	82
12.		Canon T7i	APS-C	24.0	6000	4000	1080/60p	23.7	13.1	1586	80
13.		Sony A7 IV	Full Frame	32.7	7008	4672	4K/60p	25.4	14.7	3379	97
14.		Sony A7R II	Full Frame	42.2	7952	5304	4K/30p	26.0	13.9	3434	98
15.		Sony A7R IV	Full Frame	60.2	9504	6336	4K/30p	26.0	14.8	3344	99
16.		Sony A7S	Full Frame	12.0	4240	2832	1080/60p	23.9	13.2	3702	87
17.		Sony A7S III	Full Frame	12.0	4240	2832	4K/120p	23.7	13.9	2520	86
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, and both provide the same movie specifications (4K/30p).

Feature comparison

Beyond 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 A7S II offers a slightly higher resolution than the one in the R50 (2400k vs 2360k dots). The following table reports on some other key feature differences and similarities of the Canon R50, the Sony A7S II, 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 R50	2360	n	3.0 / 1620	swivel	Y	1/4000s	12.0/s	Y	n
2.		Sony A7S II	2400	n	3.0 / 1229	tilting	n	1/8000s	5.0/s	n	Y
3.		Canon M3	optional	n	3.0 / 1040	tilting	Y	1/4000s	4.2/s	Y	n
4.		Canon M5	2360	n	3.2 / 1620	tilting	Y	1/4000s	9.0/s	Y	n
5.		Canon M6	optional	n	3.0 / 1040	tilting	Y	1/4000s	9.0/s	Y	n
6.		Canon M50	2360	n	3.0 / 1040	swivel	Y	1/4000s	10.0/s	Y	n
7.		Canon M50 Mark II	2360	n	3.0 / 1040	swivel	Y	1/4000s	10.0/s	Y	n
8.		Canon R10	2360	n	3.0 / 1040	swivel	Y	1/8000s	15.0/s	Y	n
9.		Canon R100	2360	n	3.0 / 1040	fixed	n	1/4000s	6.5/s	Y	n
10.		Canon SL2	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
11.		Canon SL3	optical	n	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
12.		Canon T7i	optical	n	3.0 / 1040	swivel	Y	1/4000s	6.0/s	Y	n
13.		Sony A7 IV	3686	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
14.		Sony A7R II	2400	n	3.0 / 1229	tilting	n	1/8000s	5.0/s	n	Y
15.		Sony A7R IV	5760	n	3.0 / 1440	tilting	Y	1/8000s	10.0/s	n	Y
16.		Sony A7S	2400	n	3.0 / 921	tilting	n	1/8000s	5.0/s	n	n
17.		Sony A7S III	9440	n	3.0 / 1440	swivel	Y	1/8000s	10.0/s	n	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One difference between the cameras concerns the presence of an on-board flash. The R50 has one, while the A7S II does not. While the built-in flash of the R50 is not very powerful, it can at times be useful as a fill-in light.

The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, both cameras under consideration feature an electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).

The Canon R50 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.

The R50 writes its imaging data to SDXC cards, while the A7S II uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 EOS R50 and Sony Alpha 7S II 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 R50	Y	stereo / mono	Y	-	micro	3.2	Y	-	Y
2.		Sony A7S II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
3.		Canon M3	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
4.		Canon M5	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
5.		Canon M6	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
6.		Canon M50	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
7.		Canon M50 Mark II	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
8.		Canon R10	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
9.		Canon R100	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
10.		Canon SL2	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
11.		Canon SL3	Y	stereo / mono	Y	-	mini	2.0	Y	-	Y
12.		Canon T7i	Y	stereo / mono	Y	-	mini	2.0	Y	Y	Y
13.		Sony A7 IV	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
14.		Sony A7R II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
15.		Sony A7R IV	Y	stereo / mono	Y	Y	micro	3.1	Y	Y	Y
16.		Sony A7S	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
17.		Sony A7S III	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y

It is notable that the A7S II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The R50 lacks such a headphone port.

The R50 is a recent model that features in the current product line-up of Canon. In contrast, the A7S II has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7S II was succeeded by the Sony A7S III. Further information on the features and operation of the R50 and A7S II can be found, respectively, in the Canon R50 Manual (free pdf) or the online Sony A7S II Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Canon R50 and the Sony A7S II? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

Arguments in favor of the Canon EOS R50:

• More detail: Offers more megapixels (24 vs 12MP) with a 41% higher linear resolution.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• More detailed LCD: Has a higher resolution rear screen (1620k vs 1229k dots).
• More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
• Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster burst: Shoots at higher frequency (12 vs 5 flaps/sec) to capture the decisive moment.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More compact: Is smaller (116x86mm vs 127x96mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 252g or 40 percent) and hence easier to carry around.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• More affordable: Was introduced into a lower priced category (77 percent cheaper at launch).
• More modern: Reflects 7 years and 4 months of technical progress since the A7S II launch.

Reasons to prefer the Sony Alpha 7S II:

• Better sound control: Has a headphone port that enables audio monitoring while recording.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.58x).
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Longer lasting: Gets more shots (370 versus 230) out of a single battery charge.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More heavily discounted: Has been around for much longer (launched in September 2015).

If the number of relative strengths (bullet points above) is taken as a guide, the R50 is the clear winner of the match-up (15 : 8 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision 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 R50 and the Sony A7S II place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the R50 or the A7S II. 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 hands-on reviews by experts are important. 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	Street Price
1.		Canon R50	4/5	+ +	4.5/5	84/100	..	4.5/5	Feb 2023	US$ 679	amazon.com
2.		Sony A7S II	5/5	+	..	..	4.5/5	5/5	Sep 2015	US$ 2 999	ebay.com
3.		Canon M3	4/5	o	..	75/100	4.5/5	4/5	Feb 2015	US$ 679	ebay.com
4.		Canon M5	4/5	+	4/5	82/100	4/5	4/5	Sep 2016	US$ 979	ebay.com
5.		Canon M6	..	..	..	80/100	4/5	4/5	Feb 2017	US$ 779	ebay.com
6.		Canon M50	..	+	4/5	79/100	..	3.5/5	Feb 2018	US$ 779	ebay.com
7.		Canon M50 Mark II	4/5	..	4/5	..	4.5/5	3.5/5	Oct 2020	US$ 599	ebay.com
8.		Canon R10	4/5	..	4.5/5	87/100	4/5	4.5/5	May 2022	US$ 979	amazon.com
9.		Canon R100	3/5	o	4.5/5	79/100	..	3.5/5	May 2023	US$ 479	amazon.com
10.		Canon SL2	4/5	+ +	4/5	78/100	4.5/5	4.5/5	Jun 2017	US$ 549	ebay.com
11.		Canon SL3	4/5	o	4.5/5	79/100	4/5	4/5	Apr 2019	US$ 599	amazon.com
12.		Canon T7i	4.5/5	..	3.5/5	80/100	4.5/5	4/5	Feb 2017	US$ 749	ebay.com
13.		Sony A7 IV	5/5	+ +	4.5/5	89/100	4.5/5	4.5/5	Oct 2021	US$ 2 499	amazon.com
14.		Sony A7R II	5/5	+ +	5/5	90/100	5/5	5/5	Jun 2015	US$ 3 199	ebay.com
15.		Sony A7R IV	5/5	+	4.5/5	91/100	4.5/5	5/5	Jul 2019	US$ 3 499	ebay.com
16.		Sony A7S	4/5	..	..	86/100	4.5/5	5/5	Apr 2014	US$ 2 499	ebay.com
17.		Sony A7S III	4.5/5	+ +	5/5	91/100	4.5/5	5/5	Jul 2020	US$ 3 499	amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The assessments were made in relation to similar cameras of the same technological generation. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, 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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