Samsung NX30 vs Sony A7C II

The Samsung NX30 and the Sony Alpha A7C II are two digital cameras that were revealed to the public, respectively, in January 2014 and August 2023. Both the NX30 and the A7C II are mirrorless interchangeable lens cameras that are based on an APS-C (NX30) and a full frame (A7C II) sensor. The Samsung has a resolution of 20 megapixels, whereas the Sony provides 32.7 MP.

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

Headline Specifications

Samsung NX30		Sony A7C II
Mirrorless system camera		Mirrorless system camera
Samsung NX mount lenses		Sony E mount lenses
20 MP – APS-C sensor		32.7 MP – Full Frame sensor
1080/60p Video		4K/60p Video
ISO 100-25,600		ISO 100-51,200 (50 - 204,800)
Electronic viewfinder (2359k dots)		Electronic viewfinder (2360k dots)
3.0" LCD – 1036k dots		3.0" LCD – 1037k dots
Swivel touchscreen		Swivel touchscreen
9 shutter flaps per second		10 shutter flaps per second
Lens stabilization only		In-body stabilization
not weather sealed		Weathersealed body
360 shots per battery charge		540 shots per battery charge
127 x 96 x 58 mm, 375 g		124 x 71 x 63 mm, 514 g

Check NX30 offers at
ebay.com
Check A7C II price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Samsung NX30 and the Sony Alpha A7C 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

The side-by-side display below illustrates the physical size and weight of the Samsung NX30 and the Sony A7C II. 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 A7C II can be obtained in two different colors (black, silver), while the NX30 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 A7C II is notably smaller (28 percent) than the Samsung NX30. However, the A7C II is substantially heavier (37 percent) than the NX30. It is noteworthy in this context that the A7C II is splash and dust-proof, while the NX30 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.

The battery packs of both cameras can be charged via USB, 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. In case you want to display and compare another camera duo, you can use the CAM-parator app to select your camera combination among a large number of options.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price	Street Price
1.		Samsung NX30	127 mm	96 mm	58 mm	375 g	360	n	Jan 2014	US$ 999	ebay.com
2.		Sony A7C II	124 mm	71 mm	63 mm	514 g	540	Y	Aug 2023	US$ 2 199	amazon.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 T6s	132 mm	101 mm	78 mm	565 g	440	n	Feb 2015	US$ 649	ebay.com
6.		Fujifilm X-E3	121 mm	74 mm	43 mm	337 g	350	n	Sep 2017	US$ 899	ebay.com
7.		Nikon D3300	124 mm	98 mm	76 mm	430 g	700	n	Jan 2014	US$ 499	ebay.com
8.		Nikon D5500	124 mm	97 mm	70 mm	470 g	820	n	Jan 2015	US$ 899	ebay.com
9.		Samsung NX500	120 mm	64 mm	43 mm	287 g	370	n	Feb 2015	US$ 799	ebay.com
10.		Sony A7 II	127 mm	96 mm	60 mm	599 g	350	Y	Nov 2014	US$ 1 999	ebay.com
11.		Sony A7 IV	131 mm	96 mm	80 mm	659 g	580	Y	Oct 2021	US$ 2 499	amazon.com
12.		Sony A7C	124 mm	71 mm	60 mm	509 g	740	Y	Sep 2020	US$ 1 799	amazon.com
13.		Sony A7R	127 mm	94 mm	48 mm	465 g	340	Y	Oct 2013	US$ 2 299	ebay.com
14.		Sony A3000	128 mm	91 mm	85 mm	411 g	470	n	Aug 2013	US$ 329	ebay.com
15.		Sony A6000	120 mm	67 mm	45 mm	344 g	360	n	Feb 2014	US$ 599	ebay.com
16.		Sony A6400	120 mm	67 mm	50 mm	403 g	410	Y	Jan 2019	US$ 899	amazon.com
17.		Sony ZV-E1	121 mm	72 mm	54 mm	483 g	570	Y	Mar 2023	US$ 2 199	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

Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The NX30 was launched at a markedly lower price (by 55 percent) than the A7C 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.

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.

Of the two cameras under consideration, the Samsung NX30 features an APS-C sensor and the Sony A7C II a full frame sensor. The sensor area in the A7C II is 133 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.5 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 32.7MP, the A7C II offers a higher resolution than the NX30 (20MP), but the A7C II nevertheless has larger individual pixels (pixel pitch of 5.12μm versus 4.30μm for the NX30) due to its larger sensor. Moreover, the A7C II is a much more recent model (by 9 years and 7 months) than the NX30, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. 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 Sony A7C II implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7C II for good quality output (200 dots per inch) amounts to 35 x 23.4 inches or 89 x 59.3 cm, for very good quality (250 dpi) 28 x 18.7 inches or 71.2 x 47.5 cm, and for excellent quality (300 dpi) 23.4 x 15.6 inches or 59.3 x 39.6 cm. The corresponding values for the Samsung NX30 are 27.4 x 18.2 inches or 69.5 x 46.3 cm for good quality, 21.9 x 14.6 inches or 55.6 x 37.1 cm for very good quality, and 18.2 x 12.2 inches or 46.3 x 30.9 cm for excellent quality prints.

The Samsung NX30 has a native sensitivity range from ISO 100 to ISO 25600. The corresponding ISO settings for the Sony Alpha A7C II are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.

In terms of underlying technology, the NX30 is build around a CMOS sensor, while the A7C II 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.

Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Samsung NX30	APS-C	20.0	5472	3648	1080/60p	23.5	12.4	1014	76
2.		Sony A7C II	Full Frame	32.7	7008	4672	4K/60p	25.4	14.7	3237	96
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 T6s	APS-C	24.0	6000	4000	1080/30p	22.6	12.0	915	70
6.		Fujifilm X-E3	APS-C	24.0	6000	4000	4K/30p	23.9	13.3	1764	82
7.		Nikon D3300	APS-C	24.0	6000	4000	1080/60p	24.3	12.8	1385	82
8.		Nikon D5500	APS-C	24.0	6000	4000	1080/60p	24.1	14.0	1438	84
9.		Samsung NX500	APS-C	28.0	6480	4320	4K/30p	24.8	13.9	1379	87
10.		Sony A7 II	Full Frame	24.0	6000	4000	1080/60p	24.9	13.6	2449	90
11.		Sony A7 IV	Full Frame	32.7	7008	4672	4K/60p	25.4	14.7	3379	97
12.		Sony A7C	Full Frame	24.0	6000	4000	4K/30p	25.0	14.7	3407	95
13.		Sony A7R	Full Frame	36.2	7360	4912	1080/60p	25.6	14.1	2746	95
14.		Sony A3000	APS-C	19.8	5456	3632	1080/60i	23.7	12.8	1068	78
15.		Sony A6000	APS-C	24.0	6000	4000	1080/60p	24.1	13.1	1347	82
16.		Sony A6400	APS-C	24.0	6000	4000	4K/30p	24.0	13.6	1431	83
17.		Sony ZV-E1	Full Frame	12.0	4240	2832	4K/60p	25.4	14.6	3181	96
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 have a sensor with sufficiently fast read-out times for moving pictures, but the A7C II provides a better video resolution than the NX30. It can shoot movie footage at 4K/60p, while the Samsung is limited to 1080/60p.

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 A7C II offers a slightly higher resolution than the one in the NX30 (2360k vs 2359k dots). The adjacent table lists some of the other core features of the Samsung NX30 and Sony A7C II 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.		Samsung NX30	2359	n	3.0 / 1036	swivel	Y	1/8000s	9.0/s	Y	n
2.		Sony A7C II	2360	n	3.0 / 1037	swivel	Y	1/4000s	10.0/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 T6s	optical	Y	3.0 / 1040	swivel	Y	1/4000s	5.0/s	Y	n
6.		Fujifilm X-E3	2360	n	3.0 / 1040	fixed	Y	1/4000s	8.0/s	n	n
7.		Nikon D3300	optical	n	3.0 / 921	fixed	n	1/4000s	5.0/s	Y	n
8.		Nikon D5500	optical	n	3.2 / 1037	swivel	Y	1/4000s	5.0/s	Y	n
9.		Samsung NX500	none	n	3.0 / 1036	tilting	Y	1/6000s	9.0/s	Y	n
10.		Sony A7 II	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	Y
11.		Sony A7 IV	3686	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
12.		Sony A7C	2360	n	3.0 / 922	swivel	Y	1/4000s	10.0/s	n	Y
13.		Sony A7R	2400	n	3.0 / 1230	tilting	n	1/8000s	4.0/s	n	n
14.		Sony A3000	202	n	3.0 / 230	fixed	n	1/4000s	2.5/s	Y	n
15.		Sony A6000	1440	n	3.0 / 922	tilting	n	1/4000s	11.0/s	Y	n
16.		Sony A6400	2359	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	n
17.		Sony ZV-E1	none	n	3.0 / 1037	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 NX30 has one, while the A7C II does not. While the built-in flash of the NX30 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, the A7C II is one of those camera that have an additional 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 Samsung NX30 and the Sony A7C II both have 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 NX30 writes its imaging data to SDXC cards, while the A7C II uses SDXC or Memory Stick PRO Duo cards. The A7C II supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the NX30 can use UHS-I cards (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 Samsung NX30 and Sony Alpha A7C 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.		Samsung NX30	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
2.		Sony A7C II	Y	stereo / mono	Y	Y	micro	3.2	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 T6s	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
6.		Fujifilm X-E3	Y	stereo / mono	Y	-	micro	2.0	Y	-	Y
7.		Nikon D3300	Y	mono / mono	Y	-	mini	2.0	-	-	-
8.		Nikon D5500	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
9.		Samsung NX500	Y	stereo / mono	-	-	micro	2.0	Y	Y	Y
10.		Sony A7 II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
11.		Sony A7 IV	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
12.		Sony A7C	Y	stereo / mono	Y	Y	micro	3.2	Y	Y	Y
13.		Sony A7R	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
14.		Sony A3000	Y	stereo / mono	-	-	mini	2.0	-	-	-
15.		Sony A6000	Y	stereo / mono	-	-	micro	2.0	Y	Y	-
16.		Sony A6400	Y	stereo / mono	Y	-	micro	2.0	Y	Y	Y
17.		Sony ZV-E1	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y

It is notable that the A7C II has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The NX30 lacks such a headphone port.

The A7C II is a recent model that features in the current product line-up of Sony. In contrast, the NX30 has been discontinued (but can be found pre-owned on ebay). There has not been a direct replacement model for the NX30 from Samsung. Further information on the features and operation of the NX30 and A7C II can be found, respectively, in the Samsung NX30 Manual (free pdf) or the online Sony A7C II Manual.

Review summary

So what conclusions can be drawn? Is the Samsung NX30 better than the Sony A7C II or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Samsung NX30:

• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Less heavy: Is lighter (by 139g or 27 percent) and hence easier to carry around.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
• More affordable: Was introduced into a lower priced category (55 percent cheaper at launch).
• More heavily discounted: Has been available for much longer (launched in January 2014).

Advantages of the Sony Alpha A7C II:

• More detail: Has more megapixels (32.7 vs 20MP), which boosts linear resolution by 28%.
• Better image quality: Is equipped with a larger and more technologically advanced sensor.
• Richer colors: The sensor size advantage translates into images with better, more accurate colors.
• More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
• Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
• Better video: Provides higher definition movie capture (4K/60p vs 1080/60p).
• Better sound: Can connect to an external microphone for higher quality sound recording.
• Better sound control: Has a headphone port that enables audio monitoring while recording.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.7x vs 0.64x).
• Less disturbing: Has an electronic shutter option for completely silent shooting.
• More compact: Is smaller (124x71mm vs 127x96mm) and will fit more readily into a bag.
• Longer lasting: Gets more shots (540 versus 360) 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.
• Faster data transfer: Supports a more advanced USB protocol (3.2 vs 2.0).
• Easier wireless transfer: Supports Bluetooth for image sharing without cables.
• Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
• More modern: Reflects 9 years and 7 months of technical progress since the NX30 launch.

If the count of individual advantages (bullet points above) is taken as a guide, the A7C II is the clear winner of the contest (18 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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 Samsung NX30 and the Sony A7C 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 NX30 or the A7C II. 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 hands-on reviews by experts are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.		Samsung NX30	3/5	..	..	77/100	4.5/5	4.5/5	Jan 2014	US$ 999	ebay.com
2.		Sony A7C II	4/5	..	4/5	87/100	4.5/5	4.5/5	Aug 2023	US$ 2 199	amazon.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 T6s	5/5	+	..	77/100	4.5/5	4.5/5	Feb 2015	US$ 649	ebay.com
6.		Fujifilm X-E3	4.5/5	+	4.5/5	84/100	4.5/5	4.5/5	Sep 2017	US$ 899	ebay.com
7.		Nikon D3300	3/5	+	..	77/100	4.5/5	4.5/5	Jan 2014	US$ 499	ebay.com
8.		Nikon D5500	5/5	+	..	79/100	4.5/5	4.5/5	Jan 2015	US$ 899	ebay.com
9.		Samsung NX500	4.5/5	..	..	81/100	5/5	4.5/5	Feb 2015	US$ 799	ebay.com
10.		Sony A7 II	5/5	+	4/5	82/100	4.5/5	5/5	Nov 2014	US$ 1 999	ebay.com
11.		Sony A7 IV	5/5	+ +	4.5/5	89/100	4.5/5	4.5/5	Oct 2021	US$ 2 499	amazon.com
12.		Sony A7C	3.5/5	..	3.5/5	86/100	4/5	4/5	Sep 2020	US$ 1 799	amazon.com
13.		Sony A7R	5/5	+ +	..	82/100	4.5/5	5/5	Oct 2013	US$ 2 299	ebay.com
14.		Sony A3000	3/5	+	..	..	4/5	4/5	Aug 2013	US$ 329	ebay.com
15.		Sony A6000	5/5	+	4.5/5	80/100	4.5/5	5/5	Feb 2014	US$ 599	ebay.com
16.		Sony A6400	4/5	+	4/5	85/100	4.5/5	4/5	Jan 2019	US$ 899	amazon.com
17.		Sony ZV-E1	..	+	4/5	..	..	4.5/5	Mar 2023	US$ 2 199	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 comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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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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