With a unique 12-megapixel 35mm sensor, the Sony A7S able to shoot in very low light with impressive high ISO performance up to ISO 409,600! The sensor is tailor-made for 4K video for excellent detail, plus very wide dynamic range.

Outstanding high ISO performance; excellent dynamic range; 4K video recording (via uncompressed HDMI); XAVC S option for HD video; Slightly improved battery life over A7/A7R; Built-in Wi-Fi & NFC connectivity, Outstanding high ISO performance, for both stills and video, Excellent JPEG? image quality...

4K video requires expensive external recorder; Sluggish startup time; Loud shutter; Silent Shooting mode hurts image quality; Lacks a built-in, pop-up flash; Limited selection of native Sony FE lenses, 12 megapixels may not be enough resolution for some applications, 4K video recording is only...

Editors' note, May 16, 2014: Updated with pricing and availability.

Sony announced pricing and availability of its 4K-video-capable full-frame camera.

Sony is what is known in the business world as a "spoiler". While many manufacturers are satisfied to add new chrome and bumpers to last year's model, Sony constantly pushes the envelope, sometimes fumbling the ball, but often scoring a home run – if you'll excuse the mixed metaphor.

The Sony A7S is a 35mm full-frame compact system camera with a 12.2 megapixel sensor that provides an incredible ISO range of 50-409,600 and high dynamic range. Other standout highlights of the A7S include 4K movie recording (24p and 25p), XAVC S Full HD recording at 50Mbps, time code and optional...

Sony Alpha 7S Review - The Sony Alpha 7S is the latest addition to Sony's growing range of full frame CSCs, featuring an impressive ISO range of 50-409,600. Does it manage to surpass image quality heights seen in its stablemate? Find out in our full Alpha 7S review...

High ISO noise performance; Great dynamic range

Low resolution might not be for all; 4k option requires off-camera recording

The concept of a 36.4 mega pixel, full-frame, compact system camera is great. I was looking for a light, high quality product for travel photography - I'm really fed up of heavy cameras. Unfortunately, this is not the answer.

Sony caused a major stir in the photographic world when it introduced the 24Mp Alpha 7 and 36Mp Alpha 7R because they were the first compact system cameras to have full-frame sensors. This is something that has still yet to be done by any other manufacturer.

Sony now has three full-frame compact system cameras to give photographers a choice depending upon what is most important to them. Those wanting the ultimate in detail resolution should opt for the 36Mp Sony Alpha a7R , while photographers for whom low-light capability and video quality are of...

The Sony Alpha 7S ($2,499.99, body only) is the third camera in Sony's full-frame mirrorless family. The 12-megapixel shooter joins the 24-megapixel Alpha 7 and 36-megapixel Alpha 7R , but its resolution isn't the only differentiating factor.

Amazing high ISO capability; Full-frame image sensor; 5fps burst shooting; Sharp, tilting rear LCD; Excellent OLED EVF; Great control layout; Compact, dust and moisture-resistant body; Vertical shooting grip available

4K recording requires external recorder; No PC sync socket; No built-in flash; Limited native lens selection; Overactive EVF eye sensor

The Sony Alpha 7S ($2,499.99, body only) is the third camera in Sony's full-frame mirrorless family. The 12-megapixel shooter joins the 24-megapixel Alpha 7 and 36-megapixel Alpha 7R , but its resolution isn't the only differentiating factor. The 7S can be pushed all the way to ISO 409600, and although image quality suffers at that extreme setting, its capabilities at less-staggering sensitivities outpace the competition. It can also record video in 4K resolution, but you'll need to add an external recorder to do that. If shooting in dim light is a must, the Alpha 7S may be the best of the trio for you. But we still prefer the high-resolution 7R as our Editors' Choice, and recommend the Alpha 7 for shooters who require quick autofocus or want to get the best quality out of adapted lenses. Build The Alpha 7S is, aside from its name badge, physically identical to the Alpha 7 and 7R. It's compact when you consider that the body houses a full-frame sensor, measuring just 3.75 by 5...

The Sony Alpha 7S full-frame mirrorless camera offers incredible performance in low light, but you'll need an external recorder to take advantage of its 4K video support.

Amazing high ISO capability; Full-frame image sensor; 5fps burst shooting; Sharp, tilting rear LCD; Excellent OLED EVF; Great control layout; Compact, dust and moisture-resistant body; Vertical shooting grip available

4K recording requires external recorder; No PC sync socket; No built-in flash; Limited native lens selection; Overactive EVF eye sensor