RED DIGITAL CINEMA DSMC2 BRAIN with HELIUM 8K S35 Sensor (2018 Unified DSMC2 Lineup) - Manual (Page 141)

SPEED
The Speed setting determines how quickly the algorithm adapts to changing light.
Slow : Settings adapt in small steps. Use this setting for fewer and gradual adjustments.
Normal : Settings adapt in medium steps.
Fast : Settings adapt in large steps.
SELECTION
The Selection setting determines which values the algorithm uses. This enables you to modify the list of values so that
the algorithm selects only specific parameters. Use
Free Value Selection to improve accuracy.
For example, you can modify the aperture list to include f/2.8 and f/5.6. If Free Value Selection is enabled, the
algorithm only selects aperture parameters between f/2.8 and f/5.6. This setting limits the range of focal depth.
AE INDICATORS
When the AE feature is able to match the sensor brightness, the overlay turns yellow. If the brightness fluctuates more
than half of a stop, the overlay turns red.
When AE is enabled, the “AE” indicator displays before the aperture and exposure parameters in the Upper Status
Row. The user-selected brightness and current measured brightness display in the histogram as grey and white lines,
respectively.
AE LIMITS
All limits, includes custom modifications made to available menu items, are taken into account when AE is active. For
example, if you modify the available list of exposure values, only those values are considered.
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DSMC2 HELIUM OPERATION GUIDE