A7s and Shogun

Record amazing 4K at 30fps

a7s_shogun

As a Panasonic Lumix GH4 owner, I could not remain impassive to the possibilities offered by the 4K resolution. However the Lumix sensor size, makes it impractical in indoor environments, where light is a challenge. So I began to desire the same resolution also on the queen of Low-light cameras: Sony A7s. This mirrorless is unique for several reasons: full frame on a low megapixel density sensor in a small, compact body.  This results in a native ISO of 3200. It offer internal recording with a good XAVC codec at 50Mbps, delivering resolutions up to 1080p60, but it’s thanks to the external recorder Atomos Shogun that the mirrorless reaches the top of 4K world. This monitor / recorder permits acquisition of up to 3840×2160 @ 30p, via HDMI or SDI, recording in Adobe ProRes (LT / 422 / HQ) and Avid DnXHR or uncompressed CinemaDNG (only Sony FS7 – FS700). This combination, followed by a good selection of Zeiss lens, will give you stunning and amazing shots. I made a first test on a beautiful sunny day in Mondovi, Italy. Here you can see the result:

Samples has been recorded in “movie” picture profile, recording to Shogun in ProRes LT @ 2160p29,97, editing in post with Osiris Vision 6 LUT.
Sorry for shaky shots, recorded hand holden. I preferred to not stabilize in post since I want to show the maximum original resolution.
What really impressed me is the qualità of eery single frame; pretty usable a normal 8MP photo! This one is extrapolated and not retouched from one clip (click for full resolution)

4k-shogun-test

And here some video samples not edited. You can better understand the amazing dynamic range that this sensor deliver in a sunny day.
Test 1: PP7 (S-LOG2) : Flat LOG clip, for maximum dynamic range
Test 2: PP1 (Movie) : The amazing bokeh that new lens offer: Sony / Zeiss Distagon FE 35mm f 1.4
Test 3: PP1 (Movie) : not graded clip used in video sample.
I’ll publish more tests with lens used in this review:
Sony / Zeiss Distagon FE 35mm f 1.4
Sony / Zeiss 16-35mm f4.0 OSS
Samyang 85mm T1.5 CINE
Zeiss Planar T* 50mm f1.4