Sony A77 vs RX1R
The Sony Alpha SLT-A77 and the Sony Cyber-shot DSC-RX1R are two enthusiast cameras that were officially introduced, respectively, in August 2011 and June 2013. The A77 is a DSLR, while the RX1R is a fixed lens compact. The cameras are based on an APS-C (A77) and a full frame (RX1R) 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.
|Sony A77||Sony RX1R|
|Digital single lens reflex||Fixed lens compact camera|
|Sony A mount lenses||35mm f/2.0|
|24 MP, APS-C Sensor||24 MP, Full Frame Sensor|
|1080/60p Video||1080/60p Video|
|ISO 100-16000 (50-25600)||ISO 100-25600 (50-102400)|
|Electronic viewfinder (2359k dots)||Viewfinder optional|
|3.0" LCD, 921k dots||3.0" LCD, 1229k dots|
|Fully flexible screen (no touchscreen)||Fixed screen (not touch-sensitive)|
|12 shutter flaps per second||5 shutter flaps per second|
|In-body stabilization||No shake reduction|
|Weathersealed body||Not weather sealed|
|470 shots per battery charge||270 shots per battery charge|
|143 x 104 x 81 mm, 732 g||113 x 65 x 70 mm, 482 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha SLT-A77 and the Sony Cyber-shot DSC-RX1R? 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: Sony A77 vs RX1R
The physical size and weight of the Sony A77 and the Sony RX1R are illustrated in the side-by-side display below. 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 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 RX1R is considerably smaller (51 percent) than the Sony A77. It is worth mentioning in this context that the A77 is splash and dust resistant, while the RX1R does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the RX1R has a lens built in, whereas the A77 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.
Concerning battery life, the A77 gets 470 shots out of its NP-FM500H battery, while the RX1R can take 270 images on a single charge of its NP-BX1 power pack. The power pack in the RX1R can be charged via the USB port, 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. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Sony A77»||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,399||-||Sony A77|
|Sony RX1R«||4.4 in||2.6 in||2.8 in||17.0 oz||270||n||Jun 2013||2,799||-||Sony RX1R|
|Canon 6D« »||5.7 in||4.4 in||2.8 in||27.2 oz||1090||Y||Sep 2012||2,099||-||Canon 6D|
|Leica X Typ 113« »||5.2 in||2.9 in||3.1 in||17.1 oz||350||n||Sep 2014||2,295||Leica X Typ 113|
|Nikon D600« »||5.6 in||4.4 in||3.2 in||30.0 oz||900||Y||Sep 2012||2,099||-||Nikon D600|
|Panasonic GH5« »||5.5 in||3.9 in||3.4 in||25.6 oz||410||Y||Jan 2017||1,999||Panasonic GH5|
|Pentax K-3« »||5.2 in||3.9 in||3.0 in||28.2 oz||560||Y||Oct 2013||1,299||-||Pentax K-3|
|Sony A9« »||5.0 in||3.8 in||2.5 in||23.7 oz||650||Y||Apr 2017||4,499||Sony A9|
|Sony A6500« »||4.7 in||2.6 in||2.1 in||16.0 oz||350||Y||Oct 2016||1,399||Sony A6500|
|Sony RX1R II« »||4.4 in||2.6 in||2.8 in||17.9 oz||220||n||Oct 2015||3,299||Sony RX1R II|
|Sony A7 II« »||5.0 in||3.8 in||2.4 in||21.1 oz||350||Y||Nov 2014||1,999||-||Sony A7 II|
|Sony A77 II« »||5.6 in||4.1 in||3.2 in||22.8 oz||480||Y||May 2014||1,199||Sony A77 II|
|Sony A7R« »||5.0 in||3.7 in||1.9 in||16.4 oz||340||Y||Oct 2013||2,299||-||Sony A7R|
|Sony A3000« »||5.0 in||3.6 in||3.3 in||14.5 oz||470||n||Aug 2013||329||-||Sony A3000|
|Sony A99« »||5.8 in||4.4 in||3.1 in||28.6 oz||500||Y||Sep 2012||2,799||-||Sony A99|
|Sony RX1« »||4.4 in||2.6 in||2.8 in||17.0 oz||270||n||Sep 2012||2,799||-||Sony RX1|
|Sony A850« »||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Aug 2009||1,999||-||Sony A850|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will naturally be influenced heavily by the price. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. 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: Sony A77 vs RX1R
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. 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Sony A77 features an APS-C sensor and the Sony RX1R a full frame sensor. The sensor area in the RX1R 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.
Even though the RX1R has a larger sensor, both cameras offer the same resolution of 24 megapixels. This implies that the RX1R has a lower pixel density and larger individual pixels (with a pixel pitch of 5.97μm versus 3.91μm for the A77), which gives it a potential advantage in terms of light gathering capacity. In addition, the RX1R is a somewhat more recent model (by 1 year and 10 months) than the A77, and its sensor might have benefitted from technological advances during this time. Coming back to sensor resolution, it should be mentioned that the RX1R has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The Sony Alpha SLT-A77 has a native sensitivity range from ISO 100 to ISO 16000, which can be extended to ISO 50-25600. The corresponding ISO settings for the Sony Cyber-shot DSC-RX1R are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 50-102400.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. 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"). Of the two cameras under consideration, the RX1R offers substantially better image quality than the A77 (overall score 13 points higher). The advantage is based on 1 bits higher color depth, 0.4 EV in additional dynamic range, and 1.7 stops in additional low light sensitivity. The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.
|Sony A77»||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78||Sony A77|
|Sony RX1R«||Full Frame||24.0||6000||4000||1080/60p||25.0||13.6||2537||91||Sony RX1R|
|Canon 6D« »||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82||Canon 6D|
|Leica X Typ 113« »||APS-C||16.1||4928||3264||1080/30p||-||-||-||-||Leica X Typ 113|
|Nikon D600« »||Full Frame||24.2||6016||4016||1080/30p||25.1||14.2||2980||94||Nikon D600|
|Panasonic GH5« »||Four Thirds||20.2||5184||3888||4K/60p||23.9||13.0||807||77||Panasonic GH5|
|Pentax K-3« »||APS-C||24.1||6016||4000||1080/60i||23.7||13.4||1216||80||Pentax K-3|
|Sony A9« »||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92||Sony A9|
|Sony A6500« »||APS-C||24.0||6000||4000||4K/30p||24.5||13.7||1405||85||Sony A6500|
|Sony RX1R II« »||Full Frame||42.2||7952||5304||1080/60p||25.8||13.9||3204||97||Sony RX1R II|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A77 II« »||APS-C||24.0||6000||4000||1080/60p||-||-||-||-||Sony A77 II|
|Sony A7R« »||Full Frame||36.2||7360||4912||1080/60p||25.6||14.1||2746||95||Sony A7R|
|Sony A3000« »||APS-C||19.8||5456||3632||1080/60i||23.7||12.8||1068||78||Sony A3000|
|Sony A99« »||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89||Sony A99|
|Sony RX1« »||Full Frame||24.0||6000||4000||1080/60p||25.1||14.3||2534||93||Sony RX1|
|Sony A850« »||Full Frame||24.4||6048||4032||-||23.8||12.2||1415||79||Sony A850|
Many modern cameras are not only capable of taking still images, but can also record movies. 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).
Feature comparison: Sony A77 vs RX1R
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A77 has an electronic viewfinder (2359k dots), which can be very helpful when shooting in bright sunlight. In contrast, the RX1R relies on live view and the rear LCD for framing. That said, the RX1R can be equipped with an optional viewfinder – the FDA-EV1MK. The adjacent table lists some of the other core features of the Sony A77 and Sony RX1R along with similar information for a selection of comparators.
|Sony A77»||2359||Y||3.0||921||full-flex||n||1/8000s||12.0||Y||Y||Sony A77|
|Sony RX1R«||-||n||3.0||1229||fixed||n||1/4000s||5.0||Y||n||Sony RX1R|
|Canon 6D« »||optical||Y||3.0||1040||fixed||n||1/4000s||4.5||n||n||Canon 6D|
|Leica X Typ 113« »||-||n||3.0||920||fixed||n||1/2000s||5.0||Y||n||Leica X Typ 113|
|Nikon D600« »||optical||Y||3.0||921||fixed||n||1/4000s||5.5||Y||n||Nikon D600|
|Panasonic GH5« »||3680||n||3.2||1620||swivel||Y||1/8000s||12.0||n||Y||Panasonic GH5|
|Pentax K-3« »||optical||Y||3.2||1037||fixed||n||1/8000s||8.3||Y||Y||Pentax K-3|
|Sony A9« »||3686||n||3.0||1440||tilting||Y||1/8000s||20.0||n||Y||Sony A9|
|Sony A6500« »||2359||n||3.0||922||tilting||Y||1/4000s||11.0||Y||Y||Sony A6500|
|Sony RX1R II« »||2360||n||3.0||1229||tilting||n||1/4000s||5.0||n||n||Sony RX1R II|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y||Sony A7 II|
|Sony A77 II« »||2359||Y||3.0||1229||full-flex||n||1/8000s||12.0||Y||Y||Sony A77 II|
|Sony A7R« »||2400||n||3.0||1230||tilting||n||1/8000s||4.0||n||n||Sony A7R|
|Sony A3000« »||202||n||3.0||230||fixed||n||1/4000s||2.5||Y||n||Sony A3000|
|Sony A99« »||2359||Y||3.0||1229||full-flex||n||1/8000s||6.0||n||Y||Sony A99|
|Sony RX1« »||-||n||3.0||1229||fixed||n||1/4000s||5.0||Y||n||Sony RX1|
|Sony A850« »||optical||Y||3.0||922||fixed||n||1/8000s||3.0||n||Y||Sony A850|
One feature that is present on the A77, but is missing on the RX1R is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.The A77 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the RX1R does not have a selfie-screen.
Concerning the storage of imaging data, both the A77 and the RX1R write their files to SDXC or Memory Stick PRO Duo cards. The A77 supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the RX1R cannot take advantage of Ultra High Speed SD cards.
Connectivity comparison: Sony A77 vs RX1R
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 SLT-A77 and Sony Cyber-shot DSC-RX1R and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Sony A77»||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony A77|
|Sony RX1R«||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony RX1R|
|Canon 6D« »||Y||mono||mono||Y||-||mini||2.0||Y||-||-||Canon 6D|
|Leica X Typ 113« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Leica X Typ 113|
|Nikon D600« »||Y||mono||mono||Y||Y||mini||2.0||-||-||-||Nikon D600|
|Panasonic GH5« »||Y||stereo||mono||Y||Y||full||3.1||Y||-||Y||Panasonic GH5|
|Pentax K-3« »||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Pentax K-3|
|Sony A9« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A9|
|Sony A6500« »||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony A6500|
|Sony RX1R II« »||Y||stereo||mono||Y||-||micro||2.0||Y||Y||-||Sony RX1R II|
|Sony A7 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A77 II« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Sony A77 II|
|Sony A7R« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R|
|Sony A3000« »||Y||stereo||mono||-||-||mini||2.0||-||-||-||Sony A3000|
|Sony A99« »||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Sony A99|
|Sony RX1« »||Y||stereo||mono||Y||-||mini||2.0||-||-||-||Sony RX1|
|Sony A850« »||Y||-||-||-||-||mini||2.0||-||-||-||Sony A850|
Studio photographers will appreciate that the Sony A77 (unlike the RX1R) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
Both the A77 and the RX1R have been discontinued, but can regularly be found used on eBay. The A77 was replaced by the Sony A77 II, while the RX1R was followed by the Sony RX1R II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Sony website.
Review summary: Sony A77 vs RX1R
So how do things add up? Which of the two cameras – the Sony A77 or the Sony RX1R – has the upper hand? Is one clearly better than the other? Below is a summary of the relative strengths of each of the two contestants.
Advantages of the Sony Alpha SLT-A77:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Easier framing: Has an electronic viewfinder for image framing and settings control.
- Easier setting verification: Features an LCD display on top to control shooting parameters.
- More flexible LCD: Has full-flex screen for odd-angle shots in portrait or landscape orientation.
- More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 5 flaps/sec) to capture the decisive moment.
- More flexible: Can take a variety of interchangeable lenses, including specialty optics.
- Longer lasting: Can take more shots (470 versus 270) on a single battery charge.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- Sharper images: Has hand-shake reducing image stabilization built-in.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.
- More heavily discounted: Has been on the market for longer (launched in August 2011).
Arguments in favor of the Sony Cyber-shot DSC-RX1R:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Scores substantially higher (13 points) in the DXO overall evaluation.
- Better low-light sensitivity: Can shoot in dim conditions (1.7 stops ISO advantage).
- More detailed LCD: Has a higher resolution rear screen (1229k vs 921k dots).
- Ready to shoot: Comes with an integrated lens, while the A77 requires a separate lens.
- More compact: Is smaller (113x65mm vs 143x104mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the A77).
- Easier travel charging: Can be conveniently charged via its USB port.
- More modern: Was introduced somewhat (1 year and 10 months) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the A77 is the clear winner of the match-up (14 : 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 Sony A77 and the Sony RX1R place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Prime Lens Compact Camera listings 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 incomplete and does no justice, for example, to the way the A77 or the RX1R 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: Sony A77 vs RX1R
This is where reviews by experts come in. The table below provides a synthesis of the camera assessments of some of the best known photo-gear review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). 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.
|Sony A77»||91/100||81/100||-||4.5/5||5/5||Aug 2011||1,399||-||Sony A77|
|Sony RX1R«||-||-||4/5||o||4.5/5||Jun 2013||2,799||-||Sony RX1R|
|Canon 6D« »||+ +||83/100||4.5/5||4.5/5||4.5/5||Sep 2012||2,099||-||Canon 6D|
|Leica X Typ 113« »||-||-||3.5/5||-||4/5||Sep 2014||2,295||Leica X Typ 113|
|Nikon D600« »||+ +||87/100||5/5||4.5/5||4.5/5||Sep 2012||2,099||-||Nikon D600|
|Panasonic GH5« »||+ +||85/100||4.5/5||5/5||5/5||Jan 2017||1,999||Panasonic GH5|
|Pentax K-3« »||-||83/100||5/5||4.5/5||5/5||Oct 2013||1,299||-||Pentax K-3|
|Sony A9« »||+ +||89/100||5/5||5/5||5/5||Apr 2017||4,499||Sony A9|
|Sony A6500« »||+ +||85/100||4.5/5||5/5||4.5/5||Oct 2016||1,399||Sony A6500|
|Sony RX1R II« »||-||82/100||-||o||4.5/5||Oct 2015||3,299||Sony RX1R II|
|Sony A7 II« »||+||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-||Sony A7 II|
|Sony A77 II« »||-||80/100||4.5/5||4/5||5/5||May 2014||1,199||Sony A77 II|
|Sony A7R« »||+ +||82/100||4.5/5||5/5||5/5||Oct 2013||2,299||-||Sony A7R|
|Sony A3000« »||+||-||4/5||4.5/5||4/5||Aug 2013||329||-||Sony A3000|
|Sony A99« »||-||84/100||4.5/5||o||4.5/5||Sep 2012||2,799||-||Sony A99|
|Sony RX1« »||-||79/100||4/5||4.5/5||4.5/5||Sep 2012||2,799||-||Sony RX1|
|Sony A850« »||-||75/100||-||4/5||4.5/5||Aug 2009||1,999||-||Sony A850|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
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. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
Other camera comparisons
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 5DS vs Sony RX1R II
- Canon 800D vs Sony RX1R II
- Canon T5i vs Sony A77 II
- Fujifilm X-E3 vs Sony RX1R II
- Fujifilm XF10 vs Sony RX1R
- Leica Digilux 3 vs Sony RX1R II
- Leica SL vs Sony A77 II
- Nikon D3500 vs Sony RX1R II
- Nikon D90 vs Sony RX1R II
- Nikon Z6 vs Sony RX1R II
- Panasonic FZ1000 II vs Sony A77 II
- Sony A7 vs Sony A77
Specifications: Sony A77 vs Sony RX1R
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 A77||Sony RX1R|
|Camera Type||Digital single lens reflex||Fixed lens compact camera|
|Camera Lens||Sony A mount lenses||35mm f/2.0|
|Launch Date||August 2011||June 2013|
|Launch Price||USD 1399||USD 2799|
|Sensor Specs||Sony A77||Sony RX1R|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.5 x 15.6 mm||35.8 x 23.9 mm|
|Sensor Area||366.6 mm2||855.62 mm2|
|Sensor Diagonal||28.2 mm||43 mm|
|Sensor Resolution||24 Megapixels||24 Megapixels|
|Image Resolution||6000 x 4000 pixels||6000 x 4000 pixels|
|Pixel Pitch||3.91 μm||5.97 μm|
|Pixel Density||6.55 MP/cm2||2.80 MP/cm2|
|Moiré control||Anti-Alias filter||no AA filter|
|Movie Capability||1080/60p Video||1080/60p Video|
|ISO Setting||100-16000 ISO||100-25600 ISO|
|ISO Boost||50-25600 ISO||50-102400 ISO|
|Image Processor||BIONZ X||BIONZ X|
|DXO Sensor Quality (score)||78||91|
|DXO Color Depth (bits)||24.0||25.0|
|DXO Dynamic Range (EV)||13.2||13.6|
|DXO Low Light (ISO)||801||2537|
|Screen Specs||Sony A77||Sony RX1R|
|Viewfinder Type||Electronic viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2359k dots|
|Top-Level Screen||Control Panel||no Top Display|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||921k dots||1229k dots|
|LCD Attachment||Fully flexible screen||Fixed screen|
|Shooting Specs||Sony A77||Sony RX1R|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/4000/s|
|Continuous Shooting||12 shutter flaps/s||5 shutter flaps/s|
|Image Stabilization||In-body stabilization||No handshake reduction|
|Fill Flash||Build-in Flash||Build-in Flash|
|Storage Medium||MS or SDXC cards||MS or SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||no|
|Connectivity Specs||Sony A77||Sony RX1R|
|Studio Flash||PC Sync socket||no PC Sync|
|USB Connector||USB 2.0||USB 2.0|
|HDMI Port||mini HDMI||mini HDMI|
|Microphone Port||External MIC port||External MIC port|
|Wifi Support||no Wifi||no Wifi|
|Body Specs||Sony A77||Sony RX1R|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Type||NP-FM500H power pack||NP-BX1 power pack|
|Battery Life (CIPA)||470 shots per charge||270 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
143 x 104 x 81 mm
(5.6 x 4.1 x 3.2 in)
113 x 65 x 70 mm
(4.4 x 2.6 x 2.8 in)
|Camera Weight||732 g (25.8 oz)||482 g (17.0 oz)|
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