Unveiled: Sony a7S Mirrorless Digital Camera

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Released on the heels of the a7 and a7R mirrorless cameras, at the end of 2013, Sony has just announced the third model in this series: the a7S. Unlike the previous two models, the a7S, which stands for “Sensitivity,” is built with an entirely different kind of image-maker in mind. Right off the bat, the a7S's major selling points are a reduced resolution, yet still full-frame, 12.2MP CMOS sensor; the ability to record Ultra HD 4K (3840 x 2160) video with no pixel binning to an external recorder; and an expandable sensitivity range to ISO 409600.

At the core of the a7S is a newly-designed 12.2MP full-frame Exmor CMOS sensor, which works in conjunction with the same BIONZ X image processor found in the a7 and a7R cameras. The upgraded performance and enhanced technology found in the S model is capable of delivering an extended dynamic range, notably low image noise, and an extended sensitivity range of ISO 50-409600. Like the a7R, the a7S's sensor structure incorporates the unique on-chip gapless lens design to help increase light-gathering efficiency and promote greater image quality across the entirety of the sensor plane.

The combination of the processor and sensor also accentuates performance-related attributes throughout the camera system, including an apt 25-point contrast-detection AF system, which is sensitive to light levels as low as -4 EV; a top Speed Priority continuous shooting rate of 5 fps, as well as a 2.5 fps shooting rate with maintained autofocus; and support for an array of advanced video-recording capabilities.

Speaking of video capabilities, the a7S sees the most marked differences compared to its a7 counterparts with its ability to record 8-bit 4:2:2 UHD 3840 x 2160-resolution video to an optional external recorder via its micro HDMI output. For UHD video, the a7S utilizes a full pixel readout, eliminating any pixel-binning process. Beyond a noticeable difference in image quality alone, this technology also helps to lessen the chances of aliasing, false color artifacts, and moiré from occurring.

The a7S also gives you the option of recording HD resolutions internally to an SD memory card. Internally, 1080p recording has been boosted over the other a7 cameras by making use of the high-quality XAVC S format, with a data rate of 50Mbps. Video recording can be done using both the full-frame and cropped APS-C-sized regions of the image sensor, with the latter affording you the ability to record HD 720p video at a up to 120 fps for super slow-motion playback.

In an effort to improve on the professional video-recording capabilities of the a7S, support is available for the Sony’s S-Log2 Gamma setting, which expands the effective dynamic range by 1300% for increased detail in shadow and highlight regions. Dedicated picture profiles, such as black, level, gamma, and color adjustments, and a variety of markers, including zebra, can be employed for greater exposure control.

In regard to the physical structure of the a7S, it resembles that of the a7 and a7R: compact and sleek. It features the same 0.5" XGA OLED Tru-Finder EVF, with 2.36m-dot resolution, and the tilting 3.0" 921.6k-dot Xtra Fine LCD monitor. For extending the viewing and control capabilities of the camera, built-in Wi-Fi connectivity with NFC enables instant sharing and support for remote camera control from linked mobile devices.

In comparison to the a7 and a7R, the new a7S firmly holds its own and serves to further round out the broad-ranged abilities of the entire a7 series. While the a7R meets the high-resolution photographer's needs and the a7 sits as a versatile all-rounder, the a7S is poised to live up to its namesake in regard to Sensitivity. It is positioned to appeal to photographers and videographers who have a need to produce high-resolution video content as well as the ability to work in some of the most challenging of lighting conditions imaginable.

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Given it's low density of pixel, it maybe a good attracting point.  However, does it have the OLPF removed same as 7r?

Sony did not remove the OLPF from the a7S.  It will have an Optical Low Pass Filter like the a7.

whene will be ready for placing order, and delivery timeframe.

Thanks

As of the present time, Sony has not announced the price or their expected delivery dates on the camera.  When they do make an announcement we will then update our website.  In the meantime please check back on our website periodically to see if any update has been made.

ver

You know I love new toys, but Sony is starting to really lack in the pro gear area. I have been a longtime Minolta fan since the 80's. I Made the change to Sony with the A100. I have been through many sony cameras and just live my A99. My thought is- where is the flash gear. It's cool other cameras now have the new shoe design, but there is no radio triggers for it that work in all modes. Sony puts time into the camera, but nothing into the gear the operates with it. Fancy mid-line gear is now effected by this problem and from what I here some of the low line gear as well. 

This has to stop, sony ***** to pickup the slack with the accessories for true pro equipment. 

Now Sony has almost as many FE cameras as lenses...not the way to introduce a new system.

whats the price tag?

As of the present time, Sony has not announced the price or their expected delivery dates on the camera.  When they do make an announcement we will then update our website.  In the meantime please check back on our website periodically to see if any update has been made.

A7s

WOW! I guess this camera can be used with nikon lenses? What is the price of the body?

Yes, there are adapters to adapt various different series of Nikon lenses onto the Sony A7 series of cameras.  See the link below for details on the selections.  As far as pricing goes, as of the present time, Sony has not announced the price or their expected delivery dates on the camera.  When they do make an announcement we will then update our website.  In the meantime please check back on our website periodically to see if any update has been made.

http://bhpho.to/1gLgiSg

cost of the camera,lens,tripold and microphone 

As of the present time, Sony has not announced the price or their expected delivery dates on the camera.  When they do make an announcement we will then update our website.  In the meantime please check back on our website periodically to see if any update has been made.

For recommendations on lenses, tripods and microphones we ask that you send an email to askbh@bhphoto.com and our agents there can assist you with that. 

         Hello , could you tell me the price  on the  sony alpha a 7s.

As of the present time, Sony has not announced the price or their expected delivery dates on the camera.  When they do make an announcement we will then update our website.  In the meantime please check back on our website periodically to see if any update has been made.

good camera

Will the 55-210 and 18-55 emount lenses that I have for my NEX cameras work on the a7 series cameras?

NEX E-Mount lenses will work on the A7S, however, you will need to use the A7S in crop mode, as these lenses are designed for cameras with APS-C sized sensors. 

does it have the phase detection auto focus of the A7??

No, it uses a 25-point contrast-detection AF system, which is sensitive to light levels as low as -4 EV.  

With the A-Mount to E-Mount Lens Adapter from Sony it enables you to attach virtually any A-mount lens to an Alpha E-mount full-frame digital camera body. The adapter features a built-in AF motor, aperture-drive mechanism and Translucent Mirror Technology to enable full-time, continuous, TTL phase-detection autofocus. AF is supported with all A-mount lenses except STF models, and auto exposure will be enabled with all compatible lenses. Translucent Mirror Technology effectively directs light to both the imaging and focus sensors simultaneously, enabling AF to work seamlessly even during video recording and continuous shooting. For video, aperture is fixed at the maximum f/stop of the lens or at f/3.5, whichever is lower.

Hello, I would like to know the lenses compatible with Sony camera  Alpha a7S

Thank you very much

Let me know the price also And can you tell me more about the Sony Alpha also 7r.  One last question: When will the Nikon Coolpix P700 please Cordially Thierry MONDESIR

You can use any E-mount lens on the a7S.  Though, in order to take advantage of the full frame sensor, you would want to use one of the full frame E-mount lenses.  Unfortunately, Sony has yet to announce the price of the a7S, so we don’t have that information yet.  If you would like some additional information about the a7R, you might look at the Larry Becker video on Explora.  As for the P700, until Nikon made an official announcement about a camera, we would have no information about if/when it might be available.

Please send an email to askbh@bandh.com with any additional questions you might have.

I love my Sony cameras, but as a professional photographer, I need a flash that doesn't overheat and conk out on me. My Sony flash does not keep up with the camera. Are there plans for an updated flash?

For the most part, all shoe mount flashes are going to have some issue with overheating due to their construction.  The exception would be the Quantum turbo flashes, but they don’t make these for Sony at this time, and they would be a bit big for the a7 series.  That being said, Sony does have some new flashes on the market with the multi-interface shoe you might look at, such as the SonyHVL-F60M External Flash. http://bhpho.to/1cSUzJs  

How much  landed in Australia? Are lenses interchangeablle with Olympus OM D   EM 5?

We do not yet have pricing for the A7S so I cannot calculate the shipping on it. The Olympus lenses are not interchangable with the Sony lenses.

I have an Alpha 7R.  Great camera.  Lookingforward to the 7S.

In Indaia were will get

I like to see it, mor specific. Price, etc. Any good flash coming out?

You can find the specifications for the Sony a7S listed on the camera’s page on our site.  Unfortunately, we do not have a price for the camera from Sony yet.  Sony hasn’t announced a new flash at this time, so I wouldn’t be able to say if/when they might release a new one.  They do have three flash options in their line-up at the present that are fully compatible with the a7S.

Dear BH:  Do we have to wait till X-mas 2014 to have this camera?  Availability date?

Thanks.

Andy.

Sony has not announced a release date yet for the A7S. Once we hear a date our site will be updated with the info.

    I would like to hear more about The Alpha 7s including the price.

As of the present time, Sony has not announced the price or their expected delivery dates on the camera.  When they do make an announcement our site will be updated to reflect it.

People were way off on this price.

I doubt that Sony will have any problem with supply.

Alot of us will wait until they can record 4K internally.

My GroPro3+ black ann record 4K on a card. Why can't the A7S?

$2500 is out of the price for comsumer grade camera the ***** $2000 more to record in 4K.

When I see it is 4K resolution i raised my interest. How come the pixel rate is onlly 12 MP. Sony should see that they tell the filmakers ... Why this camera is so good for making 4K resolution Films. Compare with 5D Mark- III and explain the difference. Show more samples from Filmakers.

Dilip

Dilip,

When compared to the Sony a7 and a7R, the a7S can be thought of as the 4K-optimized camera within this series. Sony has chosen to make the a7S with a lower resolution in order to improve dynamic range and low-light performance beyond what can be found on a camera primarily optimized for photo. The a7S' 12.2MP resolution is closer to the resolution of 4K video enabling full pixel readout without resorting to line-skipping or pixel-binning techniques found in cameras which have sensors with resolutions far greater than the video formats they are recording. By avoiding these techniques, Sony has dramatically reduced the likelihood of introducing visual artifacts like moiré or aliasing in scenes with fine detail. 

Comparing the Sony a7S to the Canon 5D Mark III, the a7S offers the ability to produce 4K movie files via an external recorder. The Canon's 5D Mark III, does not offer either 4K resolution output or recording.  While the resolution is higher on the 5D Mark III's sensor, these pixels cannot be utilized while shooting video, and can potentially introduce artifacts when shooting scenes with high-frequency detail.

Does this unit have an auto focus feature?
Can this unit use Canon EF lenses (with an adaptor)?

The a7S is capable of autofocus, yes.  To use your EF lenses on the a7S you might look at the Metabones Canon EF Lens to Sony NEX Camera Lens Mount Adapter III.  This adapter would allow you to mount your L lenses on the a7S and retain electronic communication between the camera and lens, so it would provide automatic aperture control, EXIF data, image stabilization and autofocus.

Where can we get more info on the rig shown on the A7s promotional email (matte box, rails, monitor, etc.)?

The image was a promotional image from Sony to show what the camera is capable of. They did not give specifics of what equipment they used in the photo. That being said, there are a host of accessories that can be used to rig out the Sony A7S. If you email askbh@bhphoto.com with what you need for your production we can recommend some gear for you.

Is it going to have a weatherproof body?

The Sony A7S is not a weather sealed body.

12.5 mp? Is that correct? Not exactly competing  with other similar priced camera's!

Wat kost een Sony video camera A7S

The current price can be found on the a7S’s page on our site.  If you click on the image of the a7S above, it will take you to its page.