Sony A7S II Comparison Review
The Sony Alpha 7S II is a mirrorless interchangeable lens camera that was announced in September 2015 and is equipped with a full frame sensor. It offers a resolution of 12 megapixel.
The Sony A7S II has a Camera Elo of 2634. This rating puts the A7S II among the top 30 percent of all mirrorless interchangeable lens cameras. In terms of its sensor size category (full frame cameras), the A7S II falls among the top 40 percent. Based on its within category standings, the camera earns a 4-star performance rating.
|Sony A7S II|
|Mirrorless system camera|
|Sony E mount lenses|
|12 MP, Full Frame Sensor|
|ISO 100-102400 (50-409600)|
|Electronic viewfinder (2400k dots)|
|3.0" LCD, 1229k dots|
|Tilting screen (no touchscreen)|
|5 shutter flaps per second|
|370 shots per battery charge|
|127 x 96 x 60 mm, 627 g|
Read on to find out more about the camera's size, sensor, features, reception by expert reviewers, and how it compares to other digital cameras.
Body comparison with a credit card
The side-by-side display below illustrates the physical size of the Sony A7S II vis-à-vis a credit card. 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.
The table below summarizes the key physical specs of the Sony A7S II alongside a set of comparators. If you want to review a camera pair side-by-side, just select a right-side 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.
|Sony A7S II||5.0 in||3.8 in||2.4 in||22.1 oz||370||Y||Sep 2015||2,999||Sony A7S II|
|Olympus E-M1 II« »||5.3 in||3.6 in||2.6 in||20.2 oz||440||Y||Sep 2016||1,999||Olympus E-M1 II|
|Sony A7 III« »||5.0 in||3.8 in||2.9 in||22.9 oz||610||Y||Feb 2018||1,999||Sony A7 III|
|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 A99 II« »||5.6 in||4.1 in||3.0 in||29.9 oz||490||Y||Sep 2016||3,199||Sony A99 II|
|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 A99« »||5.8 in||4.4 in||3.1 in||28.6 oz||500||Y||Sep 2012||2,799||-||Sony A99|
|Sony A900« »||6.1 in||4.6 in||3.2 in||31.6 oz||880||Y||Sep 2008||2,999||-||Sony A900|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The Sony A7S II was launched in the US market at a price of $2,999. 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 with a 35mm slide
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. 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 are more costly to manufacture and tent to lead to bigger and heavier cameras and lenses.
The Sony A7S II features a full frame sensor and has a format factor (sometimes also referred to as "crop factor") of 1.0. Within the spectrum of camera sensors, this places the Sony A7S II among the large-sensor cameras that aim for top notch image quality.
Consistent information on actual sensor performance is available from DXO Mark for most cameras. 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 table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Sony A7S II||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85||Sony A7S II|
|Olympus E-M1 II« »||Four Thirds||20.2||5184||3888||4K/30p||23.7||12.8||1312||80||Olympus E-M1 II|
|Sony A7 III« »||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|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 A99 II« »||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92||Sony A99 II|
|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 A99« »||Full Frame||24.0||6000||4000||1080/60p||25.0||14.0||1555||89||Sony A99|
|Sony A900« »||Full Frame||24.4||6048||4032||-||23.7||12.3||1431||79||Sony A900|
Many modern cameras are not only capable of taking still images, but can also record movies. The A7S II indeed provides movie recording capabilities. The highest resolution format that the A7S II can use is 4K/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7S II has an electronic viewfinder with a resolution of 2400k dots. The viewfinder offers a field of view of 100% and a magnification of 0.78x. The tables below summarize some of the other core capabilities of the Sony A7S II in connection with corresponding information for a sample of similar cameras.
|Sony A7S II||2400||n||3.0||1229||tilting||n||8000||5.0||n||Y||Sony A7S II|
|Olympus E-M1 II« »||2360||n||3.0||1037||swivel||Y||8000||18.0||n||Y||Olympus E-M1 II|
|Sony A7 III« »||2359||n||3.0||922||tilting||Y||8000||10.0||n||Y||Sony A7 III|
|Sony A7R III« »||3686||n||3.0||1440||tilting||Y||8000||10.0||n||Y||Sony A7R III|
|Sony A9« »||3686||n||3.0||1440||tilting||Y||8000||20.0||n||Y||Sony A9|
|Sony A99 II« »||2400||Y||3.0||1229||full-flex||n||8000||12.0||n||Y||Sony A99 II|
|Sony A7R II« »||2400||n||3.0||1229||tilting||n||8000||5.0||n||Y||Sony A7R II|
|Sony A7 II« »||2400||n||3.0||1230||tilting||n||8000||5.0||n||Y||Sony A7 II|
|Sony A7S« »||2400||n||3.0||921||tilting||n||8000||5.0||n||n||Sony A7S|
|Sony A99« »||2359||Y||3.0||1229||full-flex||n||8000||6.0||n||Y||Sony A99|
|Sony A900« »||optical||Y||3.0||922||fixed||n||8000||5.0||n||Y||Sony A900|
One feature that differentiates the A7S II from many other cameras is in-body image stabilization (IBIS). The A7S II reduces the risk of handshake-induced blur with all attached lenses, while cameras without IBIS have to rely on optical image stabilization in OIS-equipped lenses to achieve the same effect.
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 7S II and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Sony A7S II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7S II|
|Olympus E-M1 II« »||Y||stereo||mono||Y||Y||micro||3.0||Y||-||-||Olympus E-M1 II|
|Sony A7 III« »||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|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 A99 II« »||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A99 II|
|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 A99« »||Y||stereo||mono||Y||Y||mini||2.0||-||-||-||Sony A99|
|Sony A900« »||Y||-||-||-||-||mini||2.0||-||-||-||Sony A900|
It is notable that the A7S II has a microphone port. Such an external microphone input can help to substantially improve the quality of audio recordings when a good external microphone is used.
While the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains incomplete and does no justice, for example, to the way the A7S II handle or perform in practice. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased. This is where reviews by experts come in. The following table reports the overall rankings of the cameras as published by some of the major camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, photographyblog).
|Sony A7S II||+||-||4.5/5||5/5||5/5||Sep 2015||2,999||Sony A7S II|
|Olympus E-M1 II« »||++||85/100||4.5/5||5/5||4.5/5||Sep 2016||1,999||Olympus E-M1 II|
|Sony A7 III« »||++||89/100||5/5||5/5||5/5||Feb 2018||1,999||Sony A7 III|
|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 A99 II« »||-||85/100||4.5/5||4.5/5||4.5/5||Sep 2016||3,199||Sony A99 II|
|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 A99« »||-||84/100||4.5/5||o||4.5/5||Sep 2012||2,799||-||Sony A99|
|Sony A900« »||++||++||4.5/5||4/5||5/5||Sep 2008||2,999||-||Sony A900|
|Notes: ++) highly recommended; +) recommended; o) reviewed; -) not available.|
The above review scores should be interpreted with care, 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 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.
Sony A7S II FAQ
Below are some additional questions and answers concerning some particular features of the A7S II.
What technology is the imaging sensor in the A7S II based on?
The camera features a CMOS (Complementary Metal–Oxide–Semiconductor) sensor.
Which image processing chip is used to convert the raw signal into an image file and perform noise reduction and image sharpening?
Sony equipped the A7S II with the BIONZ X image processor.
What is the ISO sensitivity range of the A7S II?
The camera has a native sensitivity range from ISO 100 to ISO 102400, which can be extended to ISO 50-409600.
What is the life expectancy of the shutter in the Sony Alpha 7S II?
Sony mentions a shutter rating of 200 000 actuations for the A7S II. This number represents a Mean Time before Failure, that is an average value. The shutter might fail earlier, or it might last longer. Anyway, in order to exhaust the expected shutter life of the A7S II over, say, three years, one would have to take about 200 pictures each and every day.
How to find the current shutter count on my Sony A7S II?
Sony embeds the number of shutter actuations in image metadata. You can check the number of shots that your A7S II has taken up to now by uploading a recent image to the online shutter count app.
Is completely silent shooting possible with the Sony A7S II?
The camera has an electronic shutter option, so that it is indeed feasible to capture images without any shutter noise.
Does the Sony A7S II feature an autofocus assist light?
Yes, the camera has a lamp built-in that can illuminate the subject and improve autofocus in low-light settings.
What is the fastest shutter speed that can be used with flash?
The A7S II's flash sync speed is 1/250 sec.
Does the Sony A7S II support the Ultra High Speed (UHS) bus interface for SD cards?
Yes, the camera can indeed use UHS-I cards (data transfer speed of up to 104 MB/s).
Which battery does the A7S II use?
The camera gets its power from the NP-FW50 (here at amazon), which is a rechargeable Lithium-Ion power pack.
Is there a vertical grip available for the A7S II?
Yes, Sony offers the VG-C2EM as an optional accessory to facilitate shooting in portrait orientation and to provide additional battery power.
Where can I find the best deals for the A7S II?
Camera to camera comparisons
If you would like to see a side-by-side review of this and another camera, just use the search menu below. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 1D X Mark II vs Sony A77 II
- Canon 5D Mark IV vs Olympus E-PL1
- Canon 5D vs Canon M10
- Canon T6i vs Olympus E-1
- Leica V-LUX 4 vs Leica V-LUX 2
- Nikon D300 vs Nikon 1 V1
- Nikon D3200 vs Nikon D810
- Nikon D3300 vs Panasonic G9
- Nikon Df vs Sony A6000
- Olympus E-M5 II vs Canon 550D
- Pentax K-5 vs Sony A7R III
- Sony A7 II vs Canon T6s
|Camera Model||Sony A7S II|
|Camera Type||Mirrorless system camera|
|Camera Lens||Sony E mount lenses|
|Launch Date||September 2015|
|Launch Price||USD 2999|
|Sensor Format||Full Frame Sensor|
|Sensor Size||35.6 x 23.8 mm|
|Sensor Area||847.28 mm2|
|Sensor Diagonal||42.8 mm|
|Sensor Resolution||12 Megapixels|
|Image Resolution||4240 x 2832 pixels|
|Pixel Pitch||8.40 μm|
|Pixel Density||1.42 MP/cm2|
|Moiré control||Anti-Alias filter|
|Movie Capability||4K/30p Video|
|ISO Setting||100-102400 ISO|
|ISO Boost||50-409600 ISO|
|Image Processor||BIONZ X|
|DXO Sensor Quality (score)||85|
|DXO Color Depth (bits)||23.6|
|DXO Dynamic Range (EV)||13.3|
|DXO Low Light (ISO)||2993|
|Viewfinder Type||Electronic viewfinder|
|Viewfinder Field of View||100%|
|Viewfinder Resolution||2400k dots|
|LCD Framing||Live View|
|Rear LCD Size||3.0 inch|
|LCD Resolution||1229k dots|
|LCD Attachment||Tilting screen|
|Autofocus System||Contrast-detect AF|
|Maximum Shutter Speed||1/8000s|
|Continuous Shooting||5 shutter flaps/s|
|Silent Shooting||Electronic Shutter|
|Image Stabilization||In-body stabilization|
|Fill Flash||no On-Board Flash|
|Storage Medium||MS or SDXC cards|
|Second Storage Option||Single card slot|
|UHS card support||UHS-I|
|USB Connector||USB 2.0|
|HDMI Port||micro HDMI|
|Microphone Port||External MIC port|
|Headphone Socket||Headphone port|
|Wifi Support||Wifi built-in|
|Near-Field Communication||NFC built-in|
|Environmental Sealing||Weathersealed body|
|Battery Type||NP-FW50 power pack|
|Battery Life (CIPA)||370 shots per charge|
|In-Camera Charging||USB charging|
127 x 96 x 60 mm
(5.0 x 3.8 x 2.4 in)
|Camera Weight||627 g (22.1 oz)|
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