Here are a bunch of Sony A7s tests, reviews and comparisons:
World of DSLR presents the Sony A7s vs the Panasonic GH4:
Den Lennie compares the night-time performance of the Sony A7s with the Canon 5D Mark III:
Both cameras were set up on same ISO and shutter speed. Both with std camera profiles. Same Lens Zeiss ZF.2 25mm was used on both and we used the highest recording bit rates on both cams. ALL-I on Canon and XAVCs on Sony. For the pedantic and eagle eyed, these were shot within minutes of each other and not at exactly the same time.
dcfever hk shows us how the video looks in different picture profiles/gammas:
Showing the difference between Movie / Still / ITU709 / S-Log2 gamma setting
Another one with S-Log2 specifically:
Yet another comparison of S-log2 and high ISO from Michael Reichmann:
Jens Knotte tests the Sony A7s with the Sony A99:
Chuljae Lee shows us the completely silent shutter mode (beep sound can be switched off as well):
And here’s a music video shot on the A7s by YAKfilms:
All scenes filmed with a pre-release model of the Sony Alpha a7S Full Frame Mirrorless Digital Camera in Japan, May 2014.
(Sony Japan Official Sponsor)
We used Metabones adapters for various lenses from Sony, Canon and vintage Nikon glass.