Sony RX1 versus Sony A7R
The Sony Cyber-shot DSC-RX1 and the Sony Alpha A7R 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 A7R is a mirrorless interchangeable lens camera. Both cameras are equipped with a full frame sensor. The RX1 has a resolution of 24 megapixel, whereas the A7R provides 36.2 MP.
An illustration of the physical size and weight of the Sony RX1 and the Sony A7R is provided in the side-by-side display below. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter. You can also use the toggle button to switch to a percentage comparison if you prefer that the measures are being expressed in relative terms (in this case, the camera on the left side – the RX1 – represents the basis for the calculations across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R is considerably larger (63 percent) than the Sony RX1. It is noteworthy in this context that the A7R 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 build 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 find an overview of optics for the A7R and their specifications in the Sony FE Lens Catalog.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.
|Camera Body Specifications
|Sony RX1 (⇒ rgt)||113 mm||65 mm||70 mm||482 g||270||no||2012||2,799||discont.||check|
|Sony A7R (⇒ lft)||127 mm||94 mm||48 mm||465 g||340||YES||2013||2,299||discont.||check|
|Leica X Vario (⇒ lft | rgt)||133 mm||73 mm||95 mm||680 g||450||no||2013||2,850||latest||check|
|Nikon D750 (⇒ lft | rgt)||141 mm||113 mm||78 mm||750 g||1230||YES||2014||2,299||latest||check|
|Nikon D5300 (⇒ lft | rgt)||125 mm||98 mm||76 mm||480 g||600||no||2013||799||discont.||check|
|Nikon D610 (⇒ lft | rgt)||141 mm||113 mm||82 mm||850 g||900||YES||2013||1,999||latest||check|
|Nikon D3200 (⇒ lft | rgt)||125 mm||96 mm||77 mm||505 g||540||no||2012||599||discont.||check|
|Nikon D5200 (⇒ lft | rgt)||129 mm||98 mm||78 mm||555 g||500||no||2012||749||discont.||check|
|Sony RX1R II (⇒ lft | rgt)||113 mm||65 mm||72 mm||507 g||220||no||2015||3,299||latest||check|
|Sony A7 II (⇒ lft | rgt)||127 mm||96 mm||60 mm||599 g||350||YES||2014||1,999||latest||check|
|Sony A7S (⇒ lft | rgt)||127 mm||94 mm||48 mm||489 g||380||YES||2014||2,499||discont.||check|
|Sony A7 (⇒ lft | rgt)||127 mm||94 mm||48 mm||474 g||340||YES||2013||1,699||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||102 mm||58 mm||38 mm||281 g||350||no||2013||749||discont.||check|
|Sony RX1R (⇒ lft | rgt)||113 mm||65 mm||70 mm||482 g||270||no||2013||2,799||discont.||check|
|Sony RX100 (⇒ lft | rgt)||102 mm||58 mm||36 mm||240 g||330||no||2012||649||discont.||check|
The listed 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.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. 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 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 A7R is 1 percent bigger. 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). Yet, 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 pixel-units. 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.
For most cameras, data on sensor performance has been reported by DXO Mark. 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 Overall DXO ratings for the two cameras under consideration are close, suggesting that they provide similar image quality. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Sony RX1 (⇒ rgt)||Full Frame||24.0||6000||4000||1080/60p||25.1||14.3||2534||93|
|Sony A7R (⇒ lft)||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95|
|Leica X Vario (⇒ lft | rgt)||APS-C||16.1||4928||3272||1080/30p||23.4||12.7||1320||78|
|Nikon D750 (⇒ lft | rgt)||Full Frame||24.2||6016||4016||1080/60p||24.8||14.5||2956||93|
|Nikon D5300 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||24.0||13.9||1338||83|
|Nikon D610 (⇒ lft | rgt)||Full Frame||24.2||6016||4016||1080/30p||25.1||14.4||2925||94|
|Nikon D3200 (⇒ lft | rgt)||APS-C||24.1||6016||4000||1080/30p||24.1||13.2||1131||81|
|Nikon D5200 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60i||24.2||13.9||1284||84|
|Sony RX1R II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||1080/60p||25.8||13.9||3204||97|
|Sony A7 II (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90|
|Sony A7S (⇒ lft | rgt)||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87|
|Sony A7 (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||24.8||14.2||2248||90|
|Sony RX100 II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.5||12.4||483||67|
|Sony RX1R (⇒ lft | rgt)||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91|
|Sony RX100 (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||22.6||12.4||390||66|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (1080/60p).
Beyond 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. The adjacent table lists some of the other core features of the Sony RX1 and Sony A7R along with similar information for a selection of comparators. If needed, the dpreview camera hub, for example, contains further detail on the cameras' specs.
|Sony RX1 (⇒ rgt)||no||no||3.0||1229||fixed||no||4000||5.0||6||no|
|Sony A7R (⇒ lft)||2400||no||3.0||1230||tilting||no||8000||4.0||no||no|
|Leica X Vario (⇒ lft | rgt)||no||no||3.0||920||fixed||no||2000||5.0||YES||no|
|Nikon D750 (⇒ lft | rgt)||optical||YES||3.2||1229||tilting||no||4000||6.0||12||no|
|Nikon D5300 (⇒ lft | rgt)||optical||no||3.2||1037||swivel||no||4000||5.0||12||no|
|Nikon D610 (⇒ lft | rgt)||optical||YES||3.2||921||fixed||no||4000||6.0||12||no|
|Nikon D3200 (⇒ lft | rgt)||optical||no||3.0||921||fixed||no||4000||4.0||12||no|
|Nikon D5200 (⇒ lft | rgt)||optical||no||3.0||921||swivel||no||4000||5.0||12||no|
|Sony RX1R II (⇒ lft | rgt)||2360||no||3.0||1229||tilting||no||4000||5.0||no||no|
|Sony A7 II (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||5.0||no||YES|
|Sony A7S (⇒ lft | rgt)||2400||no||3.0||921||tilting||no||8000||5.0||no||no|
|Sony A7 (⇒ lft | rgt)||2400||no||3.0||1230||tilting||no||8000||5.0||no||no|
|Sony RX100 II (⇒ lft | rgt)||no||no||3.0||1229||tilting||no||2000||10.0||15||YES|
|Sony RX1R (⇒ lft | rgt)||no||no||3.0||1229||fixed||no||4000||5.0||6||no|
|Sony RX100 (⇒ lft | rgt)||no||no||3.0||1229||fixed||no||2000||10.0||YES||YES|
Both the RX1 and the A7R 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.
So what is the bottom line? Is the Sony RX1 better than the Sony A7R or vice versa? A synthesis of the relative strong points of each of the models is listed below.
Arguments in favor 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 a lens build-in, whereas the A7R 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).
Advantages of the Sony Alpha A7R:
- More detail: Has more megapixels (36.2 vs 24MP), which boosts linear resolution by 23%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Easier framing: Has an electronic viewfinder for image framing and settings control.
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (8000/sec vs 4000/sec) 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.
- More modern: Was introduced somewhat (1 year and 1 month) more recently.
If the count of relative strengths (bullet points above) is taken as a measure, the A7R emerges as the winner of the match-up (9 : 6 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.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the RX1 or the A7R handle or 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. This is why hands-on reviews by experts are important. The adjacent table relays the overall verdicts of several of the most popular camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Sony RX1 (⇒ rgt)||-||79/100 Gold||4/5||4.5/5||4.5/5||2012||2,799||discont.||check|
|Sony A7R (⇒ lft)||HiRec||82/100 Gold||4.5/5||5/5||5/5||2013||2,299||discont.||check|
|Leica X Vario (⇒ lft | rgt)||-||-||4/5||4/5||4/5||2013||2,850||latest||check|
|Nikon D750 (⇒ lft | rgt)||HiRec||90/100 Gold||4.5/5||5/5||4.5/5||2014||2,299||latest||check|
|Nikon D5300 (⇒ lft | rgt)||HiRec||79/100 Silver||4.5/5||4.5/5||4.5/5||2013||799||discont.||check|
|Nikon D610 (⇒ lft | rgt)||HiRec||87/100 Gold||4.5/5||4.5/5||4.5/5||2013||1,999||latest||check|
|Nikon D3200 (⇒ lft | rgt)||HiRec||73/100 Silver||4.5/5||4.5/5||4.5/5||2012||599||discont.||check|
|Nikon D5200 (⇒ lft | rgt)||HiRec||79/100 Silver||4.5/5||4.5/5||4.5/5||2012||749||discont.||check|
|Sony RX1R II (⇒ lft | rgt)||-||82/100 Silver||-||reviewed||4.5/5||2015||3,299||latest||check|
|Sony A7 II (⇒ lft | rgt)||Rec||82/100 Silver||4.5/5||5/5||5/5||2014||1,999||latest||check|
|Sony A7S (⇒ lft | rgt)||-||86/100 Gold||4.5/5||4.5/5||5/5||2014||2,499||discont.||check|
|Sony A7 (⇒ lft | rgt)||HiRec||80/100 Silver||5/5||4.5/5||5/5||2013||1,699||discont.||check|
|Sony RX100 II (⇒ lft | rgt)||HiRec||79/100 Silver||4.5/5||5/5||4.5/5||2013||749||discont.||check|
|Sony RX1R (⇒ lft | rgt)||-||-||4/5||reviewed||4.5/5||2013||2,799||discont.||check|
|Sony RX100 (⇒ lft | rgt)||HiRec||78/100 Silver||4/5||5/5||5/5||2012||649||discont.||check|
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. Hence, a score should always be seen in the context of the camera's market launch date and its price, and comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting. If the camera you are interested in is not available, kindly get in touch, and I will try to add information on that model to the database.
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