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NAB 2014: Sony Releases A7s, 4K Output with 400k+ ISO

Caleb Ward

Sony’s latest camera offers incredibly high sensitivity and 4K output.

Along with an updated firmware for the F5 and F55, Sony has announced the arrival of their 4K A7s camera at NAB 2014. The camera is historic and boasts one of the most impressive sensors on the market.

The A7s

The A7s boasts in incredibly high amount of sensitivity, with ISO reaching as high as 409,600. What’s even more astonishing is the great color performance at such high ISO levels. The camera also features 4K HDMI output for 4K recording.

This camera is truly historic as it features the very first full-frame sensor that doesn’t use pixel-binning. If you’re not sure what pixel binning is check out this article. The test footage is really amazing. Check out this test footage shot by Den Lennie of F-Stop Academy:

A7s Specs

Sensor Exmor CMOS 14 bit
Dynamic Range Unkown
Frame Rate 30p/25p in 4K via HDMI, up to 60p in 1080 in Camera
Monitors 7.5cm LCD Screen
Reference Output HDMI
Chroma Subsampling 4:2:0
Recording Codec AVCHD, H.264, XAVC-S
Video Resolution 3840 x 2160 HDMI Output, 1920 x 1080 in-camera recording
Audio File Type AC-3
Output HDMI
Card Type Memory Stick PRO Duo
Audio Inputs Stereo mic input
Power NP-FW50

Still not convinced? Here is an overview video created by Sony showcasing the A7s capabilities.

Pricing and Availability

A price for the A7s has not been set yet but with the price of the A7 being around $1,700 we can expect the A7s to be around $2,000. The A7s is expected to ship in June of this year.

What do you think of the A7s? is the high sensitivity enough to justify buying it? Share in the comments below.