Sony A7R vs RX1

The Sony Alpha A7R and the Sony Cyber-shot DSC-RX1 are two enthusiast cameras that were officially introduced, respectively, in October 2013 and September 2012. The A7R is a mirrorless interchangeable lens camera, while the RX1 is a fixed lens compact. Both cameras are equipped with a full frame sensor. The A7R has a resolution of 36.2 megapixels, whereas the RX1 provides 24 MP.

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

Headline Specifications

Sony A7R		Sony RX1
Mirrorless system camera		Fixed lens compact camera
Sony E mount lenses		35mm f/2.0
36.2 MP – Full Frame sensor		24 MP – Full Frame sensor
1080/60p Video		1080/60p Video
ISO 100-25,600 (50 - 51,200)		ISO 100-25,600 (50 - 102,400)
Electronic viewfinder (2400k dots)		Viewfinder optional
3.0" LCD – 1230k dots		3.0" LCD – 1229k dots
Tilting screen (no touchscreen)		Fixed screen (not touch-sensitive)
4 shutter flaps per second		5 shutter flaps per second
Weathersealed body		not weather sealed
340 shots per battery charge		270 shots per battery charge
127 x 94 x 48 mm, 465 g		113 x 65 x 70 mm, 482 g

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Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha A7R and the Sony Cyber-shot DSC-RX1? 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 Sony A7R and the Sony RX1 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 size dimensions are rounded to the nearest millimeter.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX1 is considerably smaller (38 percent) than the Sony A7R. It is worth mentioning in this context that the A7R is splash and dust resistant, while the RX1 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX1 has a lens built in, whereas the A7R 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 A7R and their specifications in the Sony FE Lens Catalog.

Concerning battery life, the A7R gets 340 shots out of its Sony NP-FW50 battery, while the RX1 can take 270 images on a single charge of its Sony NP-BX1 power pack. The battery packs of both cameras can be charged via USB, 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.		Sony A7R	127 mm	94 mm	48 mm	465 g	340	Y	Oct 2013	EUR 2 099	ebay.com
2.		Sony RX1	113 mm	65 mm	70 mm	482 g	270	n	Sep 2012	EUR 3 099	ebay.com
3.		Nikon D750	141 mm	113 mm	78 mm	750 g	1230	Y	Sep 2014	EUR 2 149	ebay.com
4.		Nikon D810	146 mm	123 mm	82 mm	980 g	1200	Y	Jun 2014	EUR 3 299	ebay.com
5.		Nikon D5300	125 mm	98 mm	76 mm	480 g	600	n	Oct 2013	EUR 749	ebay.com
6.		Sony A7	127 mm	94 mm	48 mm	474 g	340	Y	Oct 2013	EUR 1 499	ebay.com
7.		Sony A7 II	127 mm	96 mm	60 mm	599 g	350	Y	Nov 2014	EUR 2 099	ebay.com
8.		Sony A7 IV	131 mm	96 mm	80 mm	659 g	580	Y	Oct 2021	EUR 2 799	amazon.com
9.		Sony A7C II	124 mm	71 mm	63 mm	514 g	540	Y	Aug 2023	EUR 2 399	amazon.com
10.		Sony A7R II	127 mm	96 mm	60 mm	625 g	290	Y	Jun 2015	EUR 3 499	ebay.com
11.		Sony A7S	127 mm	94 mm	48 mm	489 g	380	Y	Apr 2014	EUR 2 399	ebay.com
12.		Sony A3000	128 mm	91 mm	85 mm	411 g	470	n	Aug 2013	EUR 299	ebay.com
13.		Sony NEX-7	120 mm	67 mm	43 mm	400 g	430	n	Aug 2011	EUR 1 199	ebay.com
14.		Sony RX1R	113 mm	65 mm	70 mm	482 g	270	n	Jun 2013	EUR 3 099	ebay.com
15.		Sony RX1R II	113 mm	65 mm	72 mm	507 g	220	n	Oct 2015	EUR 3 499	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 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. 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 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.

Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the RX1 is 1 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

With 36.2MP, the A7R offers a higher resolution than the RX1 (24MP), but the A7R has smaller individual pixels (pixel pitch of 4.88μm versus 5.96μm for the RX1). However, the A7R is a somewhat more recent model (by 1 year and 1 month) than the RX1, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the A7R has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A7R implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R for good quality output (200 dots per inch) amounts to 36.8 x 24.6 inches or 93.5 x 62.4 cm, for very good quality (250 dpi) 29.4 x 19.6 inches or 74.8 x 49.9 cm, and for excellent quality (300 dpi) 24.5 x 16.4 inches or 62.3 x 41.6 cm. The corresponding values for the Sony RX1 are 30 x 20 inches or 76.2 x 50.8 cm for good quality, 24 x 16 inches or 61 x 40.6 cm for very good quality, and 20 x 13.3 inches or 50.8 x 33.9 cm for excellent quality prints.

The Sony Alpha A7R has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-51200. The corresponding ISO settings for the Sony Cyber-shot DSC-RX1 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.

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.

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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar imaging performance. 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.		Sony A7R	Full Frame	36.2	7360	4912	1080/60p	25.6	14.1	2746	95
2.		Sony RX1	Full Frame	24.0	6000	4000	1080/60p	25.1	14.3	2534	93
3.		Nikon D750	Full Frame	24.2	6016	4016	1080/60p	24.8	14.5	2956	93
4.		Nikon D810	Full Frame	36.2	7360	4912	1080/60p	25.7	14.8	2853	97
5.		Nikon D5300	APS-C	24.0	6000	4000	1080/60p	24.0	13.9	1338	83
6.		Sony A7	Full Frame	24.0	6000	4000	1080/60p	24.8	14.2	2248	90
7.		Sony A7 II	Full Frame	24.0	6000	4000	1080/60p	24.9	13.6	2449	90
8.		Sony A7 IV	Full Frame	32.7	7008	4672	4K/60p	25.4	14.7	3379	97
9.		Sony A7C II	Full Frame	32.7	7008	4672	4K/60p	25.4	14.7	3237	96
10.		Sony A7R II	Full Frame	42.2	7952	5304	4K/30p	26.0	13.9	3434	98
11.		Sony A7S	Full Frame	12.0	4240	2832	1080/60p	23.9	13.2	3702	87
12.		Sony A3000	APS-C	19.8	5456	3632	1080/60i	23.7	12.8	1068	78
13.		Sony NEX-7	APS-C	24.0	6000	4000	1080/60i	24.1	13.4	1016	81
14.		Sony RX1R	Full Frame	24.0	6000	4000	1080/60p	25.0	13.6	2537	91
15.		Sony RX1R II	Full Frame	42.2	7952	5304	1080/60p	25.8	13.9	3204	97
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 can also record movies. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7R has an electronic viewfinder (2400k dots), which can be very helpful when shooting in bright sunlight. In contrast, the RX1 relies on live view and the rear LCD for framing. That said, the RX1 can be equipped with an optional viewfinder – the FDA-EV1MK. The adjacent table lists some of the other core features of the Sony A7R and Sony RX1 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.		Sony A7R	2400	n	3.0 / 1230	tilting	n	1/8000s	4.0/s	n	n
2.		Sony RX1	optional	n	3.0 / 1229	fixed	n	1/4000s	5.0/s	Y	n
3.		Nikon D750	optical	Y	3.2 / 1229	tilting	n	1/4000s	6.0/s	Y	n
4.		Nikon D810	optical	Y	3.2 / 1229	fixed	n	1/8000s	5.0/s	Y	n
5.		Nikon D5300	optical	n	3.2 / 1037	swivel	n	1/4000s	5.0/s	Y	n
6.		Sony A7	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	n
7.		Sony A7 II	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	Y
8.		Sony A7 IV	3686	n	3.0 / 1037	swivel	Y	1/8000s	10.0/s	n	Y
9.		Sony A7C II	2360	n	3.0 / 1037	swivel	Y	1/4000s	10.0/s	n	Y
10.		Sony A7R II	2400	n	3.0 / 1229	tilting	n	1/8000s	5.0/s	n	Y
11.		Sony A7S	2400	n	3.0 / 921	tilting	n	1/8000s	5.0/s	n	n
12.		Sony A3000	202	n	3.0 / 230	fixed	n	1/4000s	2.5/s	Y	n
13.		Sony NEX-7	2359	n	3.0 / 921	tilting	n	1/4000s	10.0/s	Y	n
14.		Sony RX1R	optional	n	3.0 / 1229	fixed	n	1/4000s	5.0/s	Y	n
15.		Sony RX1R II	2360	n	3.0 / 1229	tilting	n	1/4000s	5.0/s	n	n
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 RX1 has one, while the A7R does not. While the built-in flash of the RX1 is not very powerful, it can at times be useful as a fill-in light.

Concerning the storage of imaging data, both the A7R and the RX1 write their files to SDXC or Memory Stick PRO Duo cards. The A7R supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the RX1 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 Sony Alpha A7R and Sony Cyber-shot DSC-RX1 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.		Sony A7R	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
2.		Sony RX1	Y	stereo / mono	Y	-	mini	2.0	-	-	-
3.		Nikon D750	Y	stereo / mono	Y	Y	mini	2.0	Y	-	-
4.		Nikon D810	Y	stereo / mono	Y	Y	mini	3.0	Y	-	-
5.		Nikon D5300	Y	stereo / mono	Y	-	mini	2.0	Y	-	-
6.		Sony A7	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
7.		Sony A7 II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
8.		Sony A7 IV	Y	stereo / mono	Y	Y	full	3.2	Y	-	Y
9.		Sony A7C II	Y	stereo / mono	Y	Y	micro	3.2	Y	-	Y
10.		Sony A7R II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
11.		Sony A7S	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
12.		Sony A3000	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Sony NEX-7	Y	stereo / mono	Y	-	mini	2.0	-	-	-
14.		Sony RX1R	Y	stereo / mono	Y	-	mini	2.0	-	-	-
15.		Sony RX1R II	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-

It is notable that the A7R offers wifi support, while the RX1 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Both the A7R and the RX1 have been discontinued, but can regularly be found used on ebay. The RX1 was replaced by the Sony RX1R, while the A7R was followed by the Sony A7R II. Further information on the features and operation of the A7R and RX1 can be found, respectively, in the Sony A7R Manual (free pdf) or the online Sony RX1 Manual.

Review summary

So what is the bottom line? Is the Sony A7R better than the Sony RX1 or vice versa? Below is a summary of the relative strengths of each of the two contestants.

Arguments in favor of the Sony Alpha A7R:

• More detail: Offers more megapixels (36.2 vs 24MP) with a 23% higher linear resolution.
• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better sound control: Has a headphone port that enables audio monitoring while recording.
• Easier framing: Has an electronic viewfinder for image composition and settings control.
• More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
• Longer lasting: Can take more shots (340 versus 270) on a single battery charge.
• Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
• 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.
• Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
• More modern: Is somewhat more recent (announced 1 year and 1 month after the RX1).

Advantages of the Sony Cyber-shot DSC-RX1:

• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Faster burst: Shoots at higher frequency (5 vs 4 flaps/sec) to capture the decisive moment.
• Ready to shoot: Has an integrated lens, whereas the A7R necessitates an extra lens.
• More compact: Is smaller (113x65mm vs 127x94mm) and will fit more readily into a bag.
• Easier fill-in: Has a small integrated flash to brighten shadows of backlit subjects.
• More heavily discounted: Has been on the market for longer (launched in September 2012).

If the number of relative strengths (bullet points above) is taken as a guide, the A7R is the clear winner of the match-up (13 : 6 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 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 Sony A7R and the Sony RX1 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact Camera listings 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 partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the A7R or the RX1. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

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.		Sony A7R	5/5	+ +	..	82/100	4.5/5	5/5	Oct 2013	EUR 2 099	ebay.com
2.		Sony RX1	5/5	..	..	79/100	4/5	4.5/5	Sep 2012	EUR 3 099	ebay.com
3.		Nikon D750	5/5	+ +	4/5	90/100	4.5/5	4.5/5	Sep 2014	EUR 2 149	ebay.com
4.		Nikon D810	5/5	..	5/5	86/100	5/5	4.5/5	Jun 2014	EUR 3 299	ebay.com
5.		Nikon D5300	4/5	+ +	..	79/100	4.5/5	4.5/5	Oct 2013	EUR 749	ebay.com
6.		Sony A7	5/5	+ +	..	80/100	5/5	5/5	Oct 2013	EUR 1 499	ebay.com
7.		Sony A7 II	5/5	+	4/5	82/100	4.5/5	5/5	Nov 2014	EUR 2 099	ebay.com
8.		Sony A7 IV	5/5	+ +	4.5/5	89/100	4.5/5	4.5/5	Oct 2021	EUR 2 799	amazon.com
9.		Sony A7C II	4/5	..	4/5	87/100	4.5/5	4.5/5	Aug 2023	EUR 2 399	amazon.com
10.		Sony A7R II	5/5	+ +	5/5	90/100	5/5	5/5	Jun 2015	EUR 3 499	ebay.com
11.		Sony A7S	4/5	..	..	86/100	4.5/5	5/5	Apr 2014	EUR 2 399	ebay.com
12.		Sony A3000	3/5	+	..	..	4/5	4/5	Aug 2013	EUR 299	ebay.com
13.		Sony NEX-7	5/5	+ +	..	81/100	4.5/5	5/5	Aug 2011	EUR 1 199	ebay.com
14.		Sony RX1R	5/5	..	..	..	4/5	4.5/5	Jun 2013	EUR 3 099	ebay.com
15.		Sony RX1R II	5/5	..	..	82/100	..	4.5/5	Oct 2015	EUR 3 499	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated 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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