Sony RX1 vs A7
The Sony Cyber-shot DSC-RX1 and the Sony Alpha A7 are two enthusiast cameras that were revealed to the public, respectively, in September 2012 and October 2013. The RX1 is a fixed lens compact, while the A7 is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. Both cameras offer a resolution of 24 megapixels.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Cyber-shot DSC-RX1 and the Sony Alpha A7? 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 Sony RX1 and the Sony A7 are illustrated 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.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7 is considerably larger (63 percent) than the Sony RX1. It is noteworthy in this context that the A7 is splash and dust-proof, 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 A7 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 A7 and their specifications in the Sony FE Lens Catalog.
Concerning battery life, the RX1 gets 270 shots out of its Sony NP-BX1 battery, while the A7 can take 340 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 following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony RX1 | 113 mm | 65 mm | 70 mm | 482 g | 270 | n | Sep 2012 | 2,799 | ebay.com | |
2. | Sony A7 | 127 mm | 94 mm | 48 mm | 474 g | 340 | Y | Oct 2013 | 1,699 | ebay.com | |
3. | Leica X Vario | 133 mm | 73 mm | 95 mm | 680 g | 450 | n | Jun 2013 | 2,850 | ebay.com | |
4. | Nikon D5300 | 125 mm | 98 mm | 76 mm | 480 g | 600 | n | Oct 2013 | 799 | ebay.com | |
5. | Sony RX1R II | 113 mm | 65 mm | 72 mm | 507 g | 220 | n | Oct 2015 | 3,299 | ebay.com | |
6. | Sony A7 II | 127 mm | 96 mm | 60 mm | 599 g | 350 | Y | Nov 2014 | 1,999 | ebay.com | |
7. | Sony A7S | 127 mm | 94 mm | 48 mm | 489 g | 380 | Y | Apr 2014 | 2,499 | ebay.com | |
8. | Sony A7R | 127 mm | 94 mm | 48 mm | 465 g | 340 | Y | Oct 2013 | 2,299 | ebay.com | |
9. | Sony A3000 | 128 mm | 91 mm | 85 mm | 411 g | 470 | n | Aug 2013 | 329 | ebay.com | |
10. | Sony RX1R | 113 mm | 65 mm | 70 mm | 482 g | 270 | n | Jun 2013 | 2,799 | ebay.com | |
11. | Sony RX100 II | 102 mm | 58 mm | 38 mm | 281 g | 350 | n | Jun 2013 | 749 | ebay.com | |
12. | Sony RX100 | 102 mm | 58 mm | 36 mm | 240 g | 330 | n | Jun 2012 | 649 | ebay.com | |
13. | Sony NEX-7 | 120 mm | 67 mm | 43 mm | 400 g | 430 | n | Aug 2011 | 1,349 | ebay.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
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. 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. 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. 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.
Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. 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.
Even though the A7 has a slightly larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the A7 has a lower pixel density and marginally larger individual pixels (with a pixel pitch of 5.97μm versus 5.96μm for the RX1), which gives it a potential advantage in terms of light gathering capacity. In addition, the A7 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.
The A7 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Sony Cyber-shot DSC-RX1 has a native sensitivity range from ISO 100 to ISO 25600, which can be extended to ISO 50-102400. The corresponding ISO settings for the Sony Alpha A7 are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-51200.
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.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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.
# | Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony RX1 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.1 | 14.3 | 2534 | 93 | |
2. | Sony A7 | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.8 | 14.2 | 2248 | 90 | |
3. | Leica X Vario | APS-C | 16.1 | 4928 | 3272 | 1080/30p | 23.4 | 12.7 | 1320 | 78 | |
4. | Nikon D5300 | APS-C | 24.0 | 6000 | 4000 | 1080/60p | 24.0 | 13.9 | 1338 | 83 | |
5. | Sony RX1R II | Full Frame | 42.2 | 7952 | 5304 | 1080/60p | 25.8 | 13.9 | 3204 | 97 | |
6. | Sony A7 II | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 24.9 | 13.6 | 2449 | 90 | |
7. | Sony A7S | Full Frame | 12.0 | 4240 | 2832 | 1080/60p | 23.9 | 13.2 | 3702 | 87 | |
8. | Sony A7R | Full Frame | 36.2 | 7360 | 4912 | 1080/60p | 25.6 | 14.1 | 2746 | 95 | |
9. | Sony A3000 | APS-C | 19.8 | 5456 | 3632 | 1080/60i | 23.7 | 12.8 | 1068 | 78 | |
10. | Sony RX1R | Full Frame | 24.0 | 6000 | 4000 | 1080/60p | 25.0 | 13.6 | 2537 | 91 | |
11. | Sony RX100 II | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 22.5 | 12.4 | 483 | 67 | |
12. | Sony RX100 | 1-inch | 20.0 | 5472 | 3648 | 1080/60p | 22.6 | 12.4 | 390 | 66 | |
13. | Sony NEX-7 | APS-C | 24.0 | 6000 | 4000 | 1080/60i | 24.1 | 13.4 | 1016 | 81 |
Many modern cameras are not only capable of taking still images, but also of capturing video footage. 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
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7 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 following table reports on some other key feature differences and similarities of the Sony RX1, the Sony A7, and comparable cameras.
# | 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 RX1 | optional | n | 3.0 / 1229 | fixed | n | 1/4000s | 5.0/s | Y | n | |
2. | Sony A7 | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | n | |
3. | Leica X Vario | optional | n | 3.0 / 920 | fixed | n | 1/2000s | 5.0/s | Y | n | |
4. | Nikon D5300 | optical | n | 3.2 / 1037 | swivel | n | 1/4000s | 5.0/s | Y | n | |
5. | Sony RX1R II | 2360 | n | 3.0 / 1229 | tilting | n | 1/4000s | 5.0/s | n | n | |
6. | Sony A7 II | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 5.0/s | n | Y | |
7. | Sony A7S | 2400 | n | 3.0 / 921 | tilting | n | 1/8000s | 5.0/s | n | n | |
8. | Sony A7R | 2400 | n | 3.0 / 1230 | tilting | n | 1/8000s | 4.0/s | n | n | |
9. | Sony A3000 | 202 | n | 3.0 / 230 | fixed | n | 1/4000s | 2.5/s | Y | n | |
10. | Sony RX1R | optional | n | 3.0 / 1229 | fixed | n | 1/4000s | 5.0/s | Y | n | |
11. | Sony RX100 II | optional | n | 3.0 / 1229 | tilting | n | 1/2000s | 10.0/s | Y | Y | |
12. | Sony RX100 | none | n | 3.0 / 1229 | fixed | n | 1/2000s | 10.0/s | Y | Y | |
13. | Sony NEX-7 | 2359 | n | 3.0 / 921 | tilting | n | 1/4000s | 10.0/s | Y | 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 A7 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 RX1 and the A7 write their files to SDXC or Memory Stick PRO Duo cards. The A7 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 Cyber-shot DSC-RX1 and Sony Alpha A7 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
# | Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony RX1 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
2. | Sony A7 | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
3. | Leica X Vario | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
4. | Nikon D5300 | Y | stereo / mono | Y | - | mini | 2.0 | Y | - | - | |
5. | Sony RX1R II | Y | stereo / mono | Y | - | micro | 2.0 | Y | Y | - | |
6. | Sony A7 II | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
7. | Sony A7S | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
8. | Sony A7R | Y | stereo / mono | Y | Y | micro | 2.0 | Y | Y | - | |
9. | Sony A3000 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
10. | Sony RX1R | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
11. | Sony RX100 II | Y | stereo / mono | - | - | micro | 2.0 | Y | Y | - | |
12. | Sony RX100 | - | stereo / mono | - | - | micro | 2.0 | - | - | - | |
13. | Sony NEX-7 | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - |
It is notable that the A7 offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the RX1 does not provide wifi capability.
Both the RX1 and the A7 have been discontinued, but can regularly be found used on ebay. The RX1 was replaced by the Sony RX1R, while the A7 was followed by the Sony A7 II. Further information on the features and operation of the RX1 and A7 can be found, respectively, in the Sony RX1 Manual (free pdf) or the online Sony A7 Manual.
Review summary
So what conclusions can be drawn? Is the Sony RX1 better than the Sony A7 or vice versa? The listing below highlights the relative strengths of the two models.
Arguments in favor of the Sony Cyber-shot DSC-RX1:
- Ready to shoot: Has a lens built-in, whereas the A7 requires a separate lens.
- More compact: Is smaller (113x65mm vs 127x94mm) and thus needs less room in the bag.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More heavily discounted: Has been on the market for longer (launched in September 2012).
Reasons to prefer the Sony Alpha A7:
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- 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: Takes interchangeable lenses and can thus be used with specialty optics.
- Longer lasting: Gets more shots (340 versus 270) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- 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: Was introduced somewhat (1 year and 1 month) more recently.
If the number of relative strengths (bullet points above) is taken as a guide, the A7 is the clear winner of the contest (12 : 4 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 RX1 and the Sony A7 place the cameras among the top in their class? Find out in the latest Best Prime Lens Compact Camera and Best Mirrorless Interchangeable Lens 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 incomplete and does no justice, for example, to the way the RX1 or the A7 perform in practice. 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 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.
# | Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Sony RX1 | 5/5 | .. | .. | 79/100 | 4/5 | 4.5/5 | Sep 2012 | 2,799 | ebay.com | |
2. | Sony A7 | 5/5 | + + | .. | 80/100 | 5/5 | 5/5 | Oct 2013 | 1,699 | ebay.com | |
3. | Leica X Vario | 3/5 | .. | .. | .. | 4/5 | 4/5 | Jun 2013 | 2,850 | ebay.com | |
4. | Nikon D5300 | 4/5 | + + | .. | 79/100 | 4.5/5 | 4.5/5 | Oct 2013 | 799 | ebay.com | |
5. | Sony RX1R II | 5/5 | .. | .. | 82/100 | .. | 4.5/5 | Oct 2015 | 3,299 | ebay.com | |
6. | Sony A7 II | 5/5 | + | 4/5 | 82/100 | 4.5/5 | 5/5 | Nov 2014 | 1,999 | ebay.com | |
7. | Sony A7S | 4/5 | .. | .. | 86/100 | 4.5/5 | 5/5 | Apr 2014 | 2,499 | ebay.com | |
8. | Sony A7R | 5/5 | + + | .. | 82/100 | 4.5/5 | 5/5 | Oct 2013 | 2,299 | ebay.com | |
9. | Sony A3000 | 3/5 | + | .. | .. | 4/5 | 4/5 | Aug 2013 | 329 | ebay.com | |
10. | Sony RX1R | 5/5 | .. | .. | .. | 4/5 | 4.5/5 | Jun 2013 | 2,799 | ebay.com | |
11. | Sony RX100 II | 5/5 | + + | .. | 79/100 | 4.5/5 | 4.5/5 | Jun 2013 | 749 | ebay.com | |
12. | Sony RX100 | 5/5 | + + | .. | 78/100 | 4/5 | 5/5 | Jun 2012 | 649 | ebay.com | |
13. | Sony NEX-7 | 5/5 | + + | .. | 81/100 | 4.5/5 | 5/5 | Aug 2011 | 1,349 | ebay.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. 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. Also, please note that some of the review sites have changed their methodology and reporting over time.
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 use the search menu 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.
Specifications: Sony RX1 vs Sony A7
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
Camera Model | Sony RX1 | Sony A7 |
---|---|---|
Camera Type | Fixed lens compact camera | Mirrorless system camera |
Camera Lens | 35mm f/2.0 | Sony E mount lenses |
Launch Date | September 2012 | October 2013 |
Launch Price | USD 2,799 | USD 1,699 |
Sensor Specs | Sony RX1 | Sony A7 |
Sensor Technology | CMOS | CMOS |
Sensor Format | Full Frame Sensor | Full Frame Sensor |
Sensor Size | 35.8 x 23.8 mm | 35.8 x 23.9 mm |
Sensor Area | 852.04 mm2 | 855.62 mm2 |
Sensor Diagonal | 43 mm | 43 mm |
Crop Factor | 1.0x | 1.0x |
Sensor Resolution | 24 Megapixels | 24 Megapixels |
Image Resolution | 6000 x 4000 pixels | 6000 x 4000 pixels |
Pixel Pitch | 5.96 μm | 5.97 μm |
Pixel Density | 2.82 MP/cm2 | 2.80 MP/cm2 |
Moiré control | Anti-Alias filter | Anti-Alias filter |
Movie Capability | 1080/60p Video | 1080/60p Video |
ISO Setting | 100 - 25,600 ISO | 100 - 25,600 ISO |
ISO Boost | 50 - 102,400 ISO | 50 - 51,200 ISO |
Image Processor | BIONZ X | BIONZ X |
DXO Sensor Quality (score) | 93 | 90 |
DXO Color Depth (bits) | 25.1 | 24.8 |
DXO Dynamic Range (EV) | 14.3 | 14.2 |
DXO Low Light (ISO) | 2534 | 2248 |
Screen Specs | Sony RX1 | Sony A7 |
Viewfinder Type | Viewfinder optional | Electronic viewfinder |
Viewfinder Field of View | 100% | |
Viewfinder Magnification | 0.71x | |
Viewfinder Resolution | 2400k dots | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.0inch |
LCD Resolution | 1229k dots | 1230k dots |
LCD Attachment | Fixed screen | Tilting screen |
Shooting Specs | Sony RX1 | Sony A7 |
Focus System | Contrast-detect AF | On-Sensor Phase-detect |
Manual Focusing Aid | Focus Peaking | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
Continuous Shooting | 5 shutter flaps/s | 5 shutter flaps/s |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | MS or SDXC cards | MS or SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | no | UHS-I |
Connectivity Specs | Sony RX1 | Sony A7 |
External Flash | Hotshoe | Hotshoe |
USB Connector | USB 2.0 | USB 2.0 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | External MIC port | External MIC port |
Headphone Socket | no Headphone port | Headphone port |
Wifi Support | no Wifi | Wifi built-in |
Near-Field Communication | no NFC | NFC built-in |
Body Specs | Sony RX1 | Sony A7 |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Sony NP-BX1 | Sony NP-FW50 |
Battery Life (CIPA) | 270 shots per charge | 340 shots per charge |
In-Camera Charging | USB charging | USB charging |
Body Dimensions |
113 x 65 x 70 mm (4.4 x 2.6 x 2.8 in) |
127 x 94 x 48 mm (5.0 x 3.7 x 1.9 in) |
Camera Weight | 482 g (17.0 oz) | 474 g (16.7 oz) |
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