RED DIGITAL CINEMA DSMC2 BRAIN with HELIUM 8K S35 Sensor (2018 Unified DSMC2 Lineup) - Manual (Page 85)

ISO MENU
To select an ISO setting, go to Menu > Image > ISO .
ISO
NOTE: To see the full range of ISO ratings, select ISO in the Upper Status Row, select Edit List , and select Custom .
NOTE: The default for Monochrome cameras is ISO 2000.
Select the camera ISO rating. The sensitivity value increments in 1/3 stops. When the ISO rating is adjusted, the
camera logs the change as metadata and the monitor path reacts accordingly. Higher ISO values lead to brighter
images in the monitor path, and vice versa.
RED recommends setting the ISO to the default, then adjusting the aperture, lighting, and ND filters to match. The ISO
can later be adjusted around one (1) stop for fine-tuning.
Range is ISO 250 to 12,800. Default is ISO 800.
FLUT
NOTE: This feature is only available in Legacy mode. For more information, go to "Image Pipeline" on page 81 .
Floating Point Lookup Table (FLUT) is an exposure control exclusive to RED. FLUT works like a traditional ISO
setting, but can be fine-tuned in post production to any level of exposure precision. FLUT automatically protects
highlights and shadows, even when changed substantially.
The FLUT setting is expressed in terms of relative exposure value (EV), where each unit represents a 1-stop change in
midtone exposure level. Range is –8.0 to 8.0. Default is 0.0.
SHADOW
NOTE: This feature is only available in Legacy mode. For more information, go to "Image Pipeline" on page 81 .
Shadow adjusts the toe value of the FLUT (the tone near black). Increasing the Shadow value raises the video level of
near blacks. Lowering the Shadow value crushes the video level of near blacks. Range is –2.0 to 2.0. Default is 0.0.
EXPOSURE ADJUST
NOTE: This feature is only available in IPP2 mode. For more information, go to "Image Pipeline" on page 81 .
Exposure Adjust (called FLUT in firmware v6.3 and earlier) works like a traditional ISO setting, but can be fine-tuned in
post production to any level of exposure precision. Exposure Adjust automatically protects highlights and shadows,
even when changed substantially.
The Exposure Adjust setting is expressed in terms of relative exposure value (EV), where each unit represents a 1-stop
change in midtone exposure level. Range is –8.0 to 8.0. Default is 0.0.
ISO CALIBRATION
RED cameras with HELIUM ® , MONSTRO ® , and GEMINI ® sensors have an ISO calibration that better matches a light
meter and improves overall exposure quality. RED cameras with HELIUM, MONSTRO, and GEMINI sensors therefore
depict a one stop brighter image compared to prior sensors (when set to an otherwise identical ISO, T-stop, and
shutter speed). ISO 400 now appears as bright as ISO 800 did before, for example.
To match exposure between cameras with HELIUM, MONSTRO, and GEMINI sensors and RED cameras that DO NOT
have those sensors, either reduce your camera’s ISO speed by 1 stop compared to the other camera, or deselect the
Menu > Image > ISO > Use updated ISO calibration check box.
As usual, RED recommends using ISO 800 as a starting point for exposure, then adjusting the T-stop and lighting or
ND filters to match.
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DSMC2 HELIUM OPERATION GUIDE