Sony A77 vs A7S II
The Sony Alpha SLT-A77 and the Sony Alpha 7S II are two digital cameras that were officially introduced, respectively, in August 2011 and September 2015. The A77 is a DSLR, while the A7S II is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (A77) and a full frame (A7S II) sensor. The A77 has a resolution of 24 megapixels, whereas the A7S II provides 12 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Sony A77||Sony A7S II|
|Digital single lens reflex||Mirrorless system camera|
|Sony A mount lenses||Sony E mount lenses|
|24 MP, APS-C Sensor||12 MP, Full Frame Sensor|
|1080/60p Video||4K/30p Video|
|ISO 100-16000 (50-25600)||ISO 100-102400 (50-409600)|
|Electronic viewfinder (2359k dots)||Electronic viewfinder (2400k dots)|
|3.0" LCD, 921k dots||3.0" LCD, 1229k dots|
|Fully flexible screen (no touchscreen)||Tilting screen (not touch-sensitive)|
|12 shutter flaps per second||5 shutter flaps per second|
|In-body stabilization||In-body stabilization|
|Weathersealed body||Weathersealed body|
|470 shots per battery charge||370 shots per battery charge|
|143 x 104 x 81 mm, 732 g||127 x 96 x 60 mm, 627 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Sony Alpha SLT-A77 and the Sony Alpha 7S 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: Sony A77 vs A7S II
An illustration of the physical size and weight of the Sony A77 and the Sony A7S II is provided 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 width, height and depth measures 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 A7S II is notably smaller (18 percent) than the Sony A77. Moreover, the A7S II is markedly lighter (14 percent) than the A77. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
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.
Concerning battery life, the A77 gets 470 shots out of its NP-FM500H battery, while the A7S II can take 370 images on a single charge of its NP-FW50 power pack. The power pack in the A7S II can be charged via the USB port, 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. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Sony A77»||5.6 in||4.1 in||3.2 in||25.8 oz||470||Y||Aug 2011||1,399||-||Sony A77|
|Sony A7S II«||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999||Sony A7S II|
|Canon 6D« »||5.7 in||4.4 in||2.8 in||27.2 oz||1090||Y||Sep 2012||2,099||-||Canon 6D|
|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 A7R III« »||5.0 in||3.8 in||2.9 in||22.9 oz||650||Y||Oct 2017||3,199||Sony A7R III|
|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 A7R II« »||5.0 in||3.8 in||2.4 in||22.0 oz||290||Y||Jun 2015||3,199||-||Sony A7R 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 A7S« »||5.0 in||3.7 in||1.9 in||17.2 oz||380||Y||Apr 2014||2,499||-||Sony A7S|
|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 A99« »||5.8 in||4.4 in||3.1 in||28.6 oz||500||Y||Sep 2012||2,799||-||Sony A99|
|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 listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A77 was launched at a markedly lower price (by 53 percent) than the A7S II, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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: Sony A77 vs A7S II
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 more expensive and 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 A7S II a full frame sensor. The sensor area in the A7S II is 131 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.
Despite having a smaller sensor, the Sony A77 offers a higher resolution of 24 megapixels, compared with 12 MP of the Sony A7S II. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.91μm versus 8.40μm for the A7S II). Moreover, it should be noted that the A7S II is much more recent (by 4 years) than the A77, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units.
The resolution advantage of the Sony A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 for good quality output (200 dots per inch) amounts to 30 x 20 inch or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inch or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inch or 50.8 x 33.9 cm. The corresponding values for the Sony A7S II are 21.2 x 14.2 inch or 53.8 x 36 cm for good quality, 17 x 11.3 inch or 43.1 x 28.8 cm for very good quality, and 14.1 x 9.4 inch or 35.9 x 24 cm for excellent quality prints.
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 Alpha 7S II are ISO 100 to ISO 102400, with the possibility to increase the ISO range to 50-409600.
For many 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. Of the two cameras under consideration, the A7S II has a markedly higher DXO score than the A77 (overall score 7 points higher), which will translate into better image quality. The advantage is based on 0.4 bits lower color depth, 0.1 EV in additional dynamic range, and 1.9 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Sony A77»||APS-C||24.0||6000||4000||1080/60p||24.0||13.2||801||78||Sony A77|
|Sony A7S II«||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
|Canon 6D« »||Full Frame||20.0||5472||3648||1080/30p||23.8||12.1||2340||82||Canon 6D|
|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 A7R III« »||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|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 A7R II« »||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98||Sony A7R II|
|Sony A7 II« »||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
|Sony A7S« »||Full Frame||12.0||4240||2832||1080/60p||23.9||13.2||3702||87||Sony A7S|
|Sony A77 II« »||APS-C||24.0||6000||4000||1080/60p||-||-||-||-||Sony A77 II|
|Sony A99« »||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89||Sony A99|
|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 also of capturing video footage. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, but the A7S II provides a better video resolution than the A77. It can shoot movie footage at 4K/30p, while the A77 is limited to 1080/60p.
Feature comparison: Sony A77 vs A7S II
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 A7S II offers a slightly higher resolution than the one in the A77 (2400k vs 2359k dots). The table below summarizes some of the other core capabilities of the Sony A77 and Sony A7S II in connection with corresponding information for a sample of similar cameras.
|Sony A77»||2359||Y||3.0||921||full-flex||n||1/8000s||12.0||Y||Y||Sony A77|
|Sony A7S II«||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7S II|
|Canon 6D« »||optical||Y||3.0||1040||fixed||n||1/4000s||4.5||n||n||Canon 6D|
|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 A7R III« »||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|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 A7R II« »||2400||n||3.0||1229||tilting||n||1/8000s||5.0||n||Y||Sony A7R II|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y||Sony A7 II|
|Sony A7S« »||2400||n||3.0||921||tilting||n||1/8000s||5.0||n||n||Sony A7S|
|Sony A77 II« »||2359||Y||3.0||1229||full-flex||n||1/8000s||12.0||Y||Y||Sony A77 II|
|Sony A99« »||2359||Y||3.0||1229||full-flex||n||1/8000s||6.0||n||Y||Sony A99|
|Sony A850« »||optical||Y||3.0||922||fixed||n||1/8000s||3.0||n||Y||Sony A850|
One difference between the cameras concerns the presence of an on-board flash. The A77 has one, while the A7S II does not. While the built-in flash of the A77 is not very powerful, it can at times be useful as a fill-in light.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 A7S II does not have a selfie-screen.
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 A7S 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).
Concerning the storage of imaging data, both the A77 and the A7S II write their files to SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
Connectivity comparison: Sony A77 vs A7S II
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 Alpha 7S II 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 A7S II«||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
|Canon 6D« »||Y||mono||mono||Y||-||mini||2.0||Y||-||-||Canon 6D|
|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 A7R III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|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 A7R II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7R II|
|Sony A7 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
|Sony A7S« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S|
|Sony A77 II« »||Y||stereo||mono||Y||-||mini||2.0||Y||Y||-||Sony A77 II|
|Sony A99« »||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Sony A99|
|Sony A850« »||Y||-||-||-||-||mini||2.0||-||-||-||Sony A850|
It is notable that the A7S II offers wifi support, which can be a very convenient means to transfer image data to an off-camera location. In contrast, the A77 does not offer wifi capability.
Studio photographers will appreciate that the Sony A77 (unlike the A7S II) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.
The A7S II is a recent model that features in the current product line-up of Sony. In contrast, the A77 has been discontinued (but it can be found pre-owned on eBay). As a replacement in the same line of cameras, the A77 was succeeded by the Sony A77 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 A7S II
So what is the bottom line? Which of the two cameras – the Sony A77 or the Sony A7S II – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Sony Alpha SLT-A77:
- More detail: Offers more megapixels (24 vs 12MP) with a 41% higher linear resolution.
- 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 burst: Shoots at higher frequency (12 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Can take more shots (470 versus 370) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
- More affordable: Was introduced into a lower priced category (53 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in August 2011).
Advantages of the Sony Alpha 7S II:
- Better image quality: Scores markedly higher (7 points) in the DXO overall evaluation.
- Better low-light sensitivity: Can shoot in dim conditions (1.9 stops ISO advantage).
- Better video: Provides higher definition movie capture (4K/30p vs 1080/60p).
- Better sound control: Has a headphone port that enables audio monitoring while recording.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.73x).
- More detailed LCD: Has a higher resolution rear screen (1229k vs 921k dots).
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- More compact: Is smaller (127x96mm vs 143x104mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 105g or 14 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- 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.
- More modern: Reflects 4 years of technical progress since the A77 launch.
If the count of relative strengths (bullet points above) is taken as a measure, the A7S II emerges as the winner of the match-up (13 : 10 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 when reflecting and deciding on a new camera. 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 A77 and the Sony A7S II place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens 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 says little about, for example, the shooting experience and imaging performance of the A77 and the A7S II in practical situations. 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 A7S II
This is why expert reviews are important. 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 A7S II«||+||-||4.5/5||5/5||5/5||Sep 2015||2,999||Sony A7S II|
|Canon 6D« »||+ +||83/100||4.5/5||4.5/5||4.5/5||Sep 2012||2,099||-||Canon 6D|
|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 A7R III« »||+ +||90/100||4.5/5||5/5||5/5||Oct 2017||3,199||Sony A7R III|
|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 A7R II« »||+ +||90/100||5/5||4.5/5||5/5||Jun 2015||3,199||-||Sony A7R II|
|Sony A7 II« »||+||82/100||4.5/5||5/5||5/5||Nov 2014||1,999||-||Sony A7 II|
|Sony A7S« »||-||86/100||4.5/5||4.5/5||5/5||Apr 2014||2,499||-||Sony A7S|
|Sony A77 II« »||-||80/100||4.5/5||4/5||5/5||May 2014||1,199||Sony A77 II|
|Sony A99« »||-||84/100||4.5/5||o||4.5/5||Sep 2012||2,799||-||Sony A99|
|Sony A850« »||-||75/100||-||4/5||4.5/5||Aug 2009||1,999||-||Sony A850|
|Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (-) not available.|
The above review scores should be interpreted with care, 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? In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.
- Canon 100D vs Sony A7S II
- Canon 1D X Mark II vs Sony A77 II
- Canon G1 X Mark III vs Sony A77
- Canon G9 X Mark II vs Sony A77 II
- Canon M100 vs Sony A7S II
- Fujifilm GFX 50S vs Sony A77 II
- Fujifilm X-T10 vs Sony A7S II
- Fujifilm X70 vs Sony A7S II
- Leica M10 vs Sony A77 II
- Nikon D7100 vs Sony A77 II
- Panasonic FZ1000 II vs Sony A7S II
- Sony A6000 vs Sony A77 II
Specifications: Sony A77 vs Sony A7S II
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 A7S II|
|Camera Type||Digital single lens reflex||Mirrorless system camera|
|Camera Lens||Sony A mount lenses||Sony E mount lenses|
|Launch Date||August 2011||September 2015|
|Launch Price||USD 1399||USD 2999|
|Sensor Specs||Sony A77||Sony A7S II|
|Sensor Format||APS-C Sensor||Full Frame Sensor|
|Sensor Size||23.5 x 15.6 mm||35.6 x 23.8 mm|
|Sensor Area||366.6 mm2||847.28 mm2|
|Sensor Diagonal||28.2 mm||42.8 mm|
|Sensor Resolution||24 Megapixels||12 Megapixels|
|Image Resolution||6000 x 4000 pixels||4240 x 2832 pixels|
|Pixel Pitch||3.91 μm||8.40 μm|
|Pixel Density||6.55 MP/cm2||1.42 MP/cm2|
|Moiré control||Anti-Alias filter||Anti-Alias filter|
|Movie Capability||1080/60p Video||4K/30p Video|
|ISO Setting||100-16000 ISO||100-102400 ISO|
|ISO Boost||50-25600 ISO||50-409600 ISO|
|Image Processor||BIONZ X||BIONZ X|
|DXO Sensor Quality (score)||78||85|
|DXO Color Depth (bits)||24.0||23.6|
|DXO Dynamic Range (EV)||13.2||13.3|
|DXO Low Light (ISO)||801||2993|
|Screen Specs||Sony A77||Sony A7S II|
|Viewfinder Type||Electronic viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2359k dots||2400k 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||Tilting screen|
|Shooting Specs||Sony A77||Sony A7S II|
|Autofocus System||Phase-detect AF||Contrast-detect AF|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/8000/s||1/8000/s|
|Continuous Shooting||12 shutter flaps/s||5 shutter flaps/s|
|Shutter Life Expectancy||150 000 actuations||200 000 actuations|
|Electronic Shutter||no E-Shutter||YES|
|Image Stabilization||In-body stabilization||In-body stabilization|
|Fill Flash||Build-in Flash||no On-Board 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||UHS-I|
|Connectivity Specs||Sony A77||Sony A7S II|
|Studio Flash||PC Sync socket||no PC Sync|
|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 A77||Sony A7S II|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Type||NP-FM500H power pack||NP-FW50 power pack|
|Battery Life (CIPA)||470 shots per charge||370 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)
127 x 96 x 60 mm
(5.0 x 3.8 x 2.4 in)
|Camera Weight||732 g (25.8 oz)||627 g (22.1 oz)|
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