ARRI ALEXA Mini LF Ready to Shoot V-Mount Set (LPL) - Manual (Page 83)

Monitoring 83
White Clipping
Just below white clipping
One stop over medium gray (
Caucasian skin )
18% medium gray
Just above black clipping
Black clipping
100% - 99%
99% - 97%
56% - 52%
42% - 38%
4.0% - 2.5%
2.5% - 0.0%
Red
Yellow
Pink
Green
Blue
Purple
Signal Level Color Exposure
False Color Configuration
► Select MENU > Monitoring > Exposure Tools > Select EVF/Mon. Exp. Tool
and select False Color to use False Color as exposure tool for EVF and Monitor.
► Select MENU > Monitoring > Exposure Tools > Select SDI Exp. Tool
and select False Color to use False Color as exposure tool for the SDI outputs.
False Color Mode
The result of activating false color can be varied to either Monitoring-based or Log C-based . This
choice is global and will be valid for all viewing outputs.
Monitoring-based When choosing Monitoring-based false color and false color is activated (with the
EXP button on the viewfinder, for example), false color is calculated based on
the video signal of the respective monitoring output. In other words, whatever is
seen on the image path is the basis for calculating false color.
If you have a monitor output or the viewfinder configured to show Log C, false
color levels will be calculated based on the Log C signal.
If you have a monitor output or the viewfinder configured to LOOK or ALEXA
Classic 709, false color levels will be calculated based on the image with the look
applied or the ALEXA Classic 709 image respectively.
Log C-based When choosing Log C-based false color, false color is always calculated based
on the Log C image. When false color is activated (with the EXP button on the
viewfinder, for example), the respective monitoring output is switched to Log C
processing, false color levels are calculated based on the Log C signal and false
color is activated. When de-activating false color, the image path is switched
back to its previous processing and false color is switched off. This setting
makes most sense for projects that record Log C images. While your monitoring
image paths can be set to show Rec 709 or a look to provide a preview for all,
you will want to know the exposure levels of the signal you are actually recording
(Log C) when checking false color. Log C-based false color mode is mandatory
when using HDR ALF-2 files.
NOTICE
When a HDR ALF-2 look file is loaded and activated in the camera, false color mode automatically
switches to 'Log C-based'. This is because HDR look files do not generate video signals over 75%,
which means that overexposure might not be indicated correctly in ‘Monitoring-based false color’
mode.
When you are using a look file that does not utilize the full signal level range and you activate false
color on a monitoring path where Look processing is active, false color will not indicate over- or
underexposure. This specifically applies to Rec 2100 PQ Look files, as they level out at a maximum
signal level of 75%.
When using look files with extreme color grading, it is possible for 'Monitoring-based' false color to
show an inaccurate result.