Screen buttons
Button Function
FPS Sets the frame rate of the sensor, adjustable from 0.750-60.000
fps in Regular Speed Mode, and from 60.000-120.000 fps in
High Speed Mode.
Note: High Speed Mode can only be activated with a valid High
Speed license key installed in the camera. Some camera models
have the High Speed license pre-installed.
AUDIO Shows the current audio level. If AUDIO is set to Off, the audio
input is switched off: no audio is embedded in the HD-SDI
outputs, and no audio tracks are recorded onto internal media.
The same applies if AUDIO is disabled, which is the case if the
sensor frame rate is different from the project fps setting (for
example, while over- or undercranking).
SHUTTER Sets the shutter angle of the sensor, adjustable from 5.0-358.0°.
Shutter angle and sensor fps determine exposure time of the
sensor in seconds by the following equation: angle/(360*fps).
Note: In High Speed mode, the shutter angle is limited to a
maximum of 356.0°.
EI Sets the exposure index rated in ASA. The ALEXA has a base
sensitivity of 800 ASA. The camera’s EI rating can be adjusted
from 160 to 3200 ASA.
Note: ASA rating is identical to ISO rating.
Note: Exposure Index is not applied to ARRIRAW signals.
COLOR Opens the color screen, where gamma and look settings for
internal recording (INT), REC OUT, MON OUT and EVF can be
changed.
WB Sets the camera’s white balance. This is the color temperature
of the light source that the ALEXA is currently adjusted for. The
white balance can be adjusted from 2000 to 11000 Kelvin in
steps of 100 Kelvin. In addition to the red/blue correction of the
white balance, the ALEXA can also compensate for a
green/magenta tint. This value, called CC (color compensation),
is shown as an exponent of the WB value. Positive values are
marked with a "+" and negative values with a "-".
The user can execute an automatic white balance by pressing
the AUTO WB button in the WB screen.
Camera Status Section
TC Displays the current time code including the source (INT:
internal, EXT: external source). Frames are not displayed.
The timebase of the time code is shown after the @ sign.
Camera is set to Ext sync: MASTER
Camera is set to Ext sync: SLAVE
Settings sync is active
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