A lot of fuss was made over the recent announcement of the Panasonic Gh4 and its 4K recording capabilities. Well, not one to be outdone, Sony has put their hat into the ring with their own 4K camera, the Sony A7s.

The A7s was announced today at NAB, and details are still coming in, but we wanted to share with you what we know so far.

Sony A7s Specs


  • Wide ISO sensitivity setting from 50 to 409600 and unprecedented dynamic range
  • World’s first full-frame sensor capable of full pixel read-out without pixel binning process for movie and 4K (QFHD: 3840 x 2160) HDMI video output
  • Professional video functions including XAVC S Full HD recording at 50Mbps, time code and optional XLR audio inputs
  • High ISO sensitivity range allows faster shutter speeds during low light shooting
  • α Mount System compatible with a wide range of high quality lenses, including power zoom lens ideal for movie shooting
  • Improved Fast Intelligent AF performance in light as low as EV-4
  • Ultra compact, light-weight body for comfortable pro-style operation

According to Sony, the key to the extraordinary sensitivity of the A7S is “a specially developed new full-frame 35mm Exmor CMOS image sensor.” That full frame sensor gives the A7s a HUGE advantage over the GH4, plus the added sensitivity means this could be a very capable video camera.

Stay tune for more information, we will share it as it becomes available.

*Here is a replay of the official announcement if you are interested in watching it.

What are your thoughts on the Sony A7s? Do you think that it is a better option than the GH4? Leave a comment below to join the discussion.