Sony FX 6 Quick Start Manual page 99

Cine EI is for shooting Slog 3
Exposing Slog 3 in Cine EI mode is different from how you may have exposed
Slog 3 in other "non-cinema" Sony cameras.
This section goes through the details of how to expose Slog 3 correctly with
the FX6.
If you are not familiar with the concept of LOG video look at these resources:
part five of the CDA Video Compression Moodle workshop for a detailed
explanation of LOG video.
part six of the CDA Video Colour Correction workshop for how to normalize
LOG clips inside Adobe Premiere, although this guide covers this topic briefly.
All Concordia Fine Arts students are enrolled in these Moodle courses. Look
for them on your Moodle dashboard.