Sony Alpha ILCE-7s (A7s)

Sony A7S will cost $2,500 when it ships in July

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

Sony's announced its first 4K-video-capable still camera, a surprisingly big revelation for the low-profile National Association of Broadcasters' show. Based on the same body as the A7 and A7R , but once again with completely different insides, the A7S incorporates a lower-resolution -- but still full-frame -- 12-megapixel sensor. At $2,500 USD for the body, I was correct that it sits above the A7R in the product line, which still costs close to its MSRP at about $2,300 USD.

That's a perfect resolution for a camera like this. It's enough pixels for lots of pro work but few enough to keep a broad tonal range and fast sensor readout, which will minimize lag and processing overhead when shooting video. Ultra High Definition/Quad Full HD (3,840x2,160 pixels) requires a minimum of 8.3-megapixel resolution, while full cinema 4K (4,096x2,160 pixels) needs 8.8 megapixels.

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