SONY A7SIII S-Log3 Dual Base ISO | high sensitivity ISO12800~ 4K Video Test

I went to Aquarium Kaiyukan with α7sIII.

The α7s III has dual base ISOs and the S-Log3 base ISOs are 640 and 12800(It may switch at ISO16000.)
Even in dark places where noise is a concern, it is possible to express images with reduced noise by using ISO12800, a dual-based ISO.

The α 7s III S-Log 3 is very noisy from around ISO 3000 to 10000, so it is difficult to use, so I shoot from 12800 with ND even in the dark.
The Aquarium Kaiyukan is basically dark, so I’m shooting at ISO 12800 or higher.
The jellyfish scene is completely dark and some cuts were taken at ISO 204000.

・camera SONY α7S III
・lens SIGMA 24-70mm F2.8 DG DN Art
・lens SONY SEL20F18

a7SIII Setting
・4K24p 4:2:2 10bit
・S-Log3
・SS 1/60
・ISO12800〜
・White balance 3200K
・Image stabilization active (all handheld shooting)

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