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O. Using the Cine EI Mode (in detail)
O3. Using Exposure Index
Exposure Index allows you to easily offset your S-Log3
exposure in a controlled way so that you can move the
mid-point of your recordings up or down to alter the
highlight and shadow ranges as well as change the signal
to noise ratio.
When you have enabled an MLUT for the viewfinder the
Exposure Index (EI) function will change the brightness of
the MLUT. EI only changes the MLUT, the camera always
continues to record at the base ISO of either 800 ISO or
4000 ISO in order to preserve the cameras full dynamic
range.
To change the Exposure Index select a different position
for the L/M/H gain switch or press the ISO/Gain button
and use the Multi-function Dial or use Direct Menu to
select the EI value displayed in the viewfinder.
When you lower the Exposure Index the brightness of
the MLUT is decreased. When you increase the EI value
the MLUT becomes brighter. If you are using a light meter
to determine your exposure you would change the light
meters ISO value to match your new EI value.
