Dsmc2 helium operation guide, Exposure/shutter – RED DIGITAL CINEMA DSMC2 BRAIN with HELIUM 8K S35 Sensor (2018 Unified DSMC2 Lineup) User Manual
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EXPOSURE/SHUTTER
Select the exposure (shutter speed / shutter angle) of each frame. You can change exposure while recording.
Decreasing shutter speed increases the amount of time that light hits the sensor, which increases exposure and motion
blur of moving objects. Increasing shutter speed decreases the amount of time that light hits the sensor, which
decreases exposure and motion blur of moving objects.
The Upper Status Row displays the exposure as either shutter speed or shutter angle. For more information, go to
If the camera is able to achieve the target exposure, the exposure value displays in white. If the camera is unable to
achieve the target exposure, the exposure value displays in yellow, and the camera uses the closest available
exposure.
NOTE:
If using speed ramp mode, select an exposure that is valid for each ramp target frame rate. If the camera ramps
to a frame rate that is incompatible with the current exposure, the exposure changes to the longest exposure possible
for the frame rate. For more information, go to
.
NOTE:
You cannot change the exposure when HDR is enabled.
INTEGRATION TIME
Enter the exposure value as a shutter speed (1/xx sec).
The slowest shutter speed is 1/(recording frame rate). For example, if the recording frame rate is 24 fps, the slowest
available shutter speed is 1/24 sec. The fastest shutter speed is 1/131,579 sec. The default shutter speed is 1/48 sec.
SHUTTER ANGLE
Enter the exposure value as a shutter angle (xx°). The shutter angle range is 1.000° to 360.000°. The default shutter
angle is 180.000°.
EXPOSURE CONVERSIONS
The table below lists common shutter speed and shutter angle equivalents. The calculations in the table use a
recording frame rate of 24 fps.
SHUTTER SPEED (1/XX SEC)
SHUTTER ANGLE (°)
SHUTTER SPEED (1/XX SEC)
SHUTTER ANGLE (°)
1/32
270
1/120
72
1/48
180
1/192
45
1/50
172.8
1/384
22.5
1/60
144
1/696
12.4
1/96
90
1/1000
8.6
CONVERT SHUTTER SPEED TO SHUTTER ANGLE
Shutter Angle = (Shutter Speed x Frame Rate x 360)
Example: (1/48 x 24 x 360) = 180
CONVERT SHUTTER ANGLE TO SHUTTER SPEED
Shutter Speed = 1/(Frame Rate x 360/Angle)
Example: 1/(24 x 360/180) = 1/48
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DSMC2 HELIUM OPERATION GUIDE