Image courtesy: Cinema5D
Cinema5D (Click here) posted a full A7s dynamic range test (in video):
Here we tested usable dynamic range of the given cameras. With 14.1 stops the usable dynamic range of the A7S comes surprisingly close to the Arri Amira with its legendary Alexa sensor (see our full review here).
This is an extremely good dynamic range rating and is fascinating considering that the A7S is available at a fraction of the Amira’s price and is also in a completely different weight and size class. While the Amira will outperform the A7S in other tests, the dynamic range is a very important attribute to consider when working with a camera.
Gizmodo posted the full A7s review and writes:
The A7s is a great demonstration of technology powerful enough to make you forget about its flaws. The Panasonic GH4 has more tools, more options, more usability—with 4K built right in, and to spectacular effect. But the micro four thirds sensor of the GH4 offers its own compromises: low light is not very good, shallow depth of field is constrained, as is field of view. But here’s the real kicker. The A7s will literally increase the possible scenarios in which you can get a good shot, by way of low light performance. No amount of 4K, 8K, or how ever many K can accomplish that.
More A7s tests:
Professional photographer/videographer sold his canon 1dc and purchased Sony a7s’s Matt Buckman’s Review of the Sony a7s: http://youtu.be/sjKbIIsLWdQ
A7s test at Fotopolis (translation here).
A7s review at DigitalCameraWorld.
Eric Lo: “I just came back from a long road trip and finished photo editing, all photos were taken with A7S(night), A7R(day) and Canon lenses (14L2, 15 Fisheye, 17TSE, 2470L2). http://bit.ly/1qLSLaH”
Sony A7s store links:
Sony A7s preorder in USA/CA at Amazon, Adorama, BHphoto, Sony USA, Sony Canada.
Sony A7s EU pages: Sony DE, UK, ES, FR, IT, NL, BE, AT, CH, SE, NO, FI, PL. And Wex UK.