Rotolight AEOS, User Manual

Page: 24 / 40

(‘FDIM’) True Aperture Dimming™
Shows the brightness setting as an accurately
calculated aperture (F-stop) for your subject at a
given distance.
Cycle the menu to FDIM then click the right knob
to enter FDIM mode.
Rotating the left knob cycles through the available
parameters:
ISO (your camera ISO setting), EXP (your camera
shutter speed) and FEET (the distance from the
light to your subject in feet).
Rotating the right knob will adjust the selected
parameter (ISO/EXP/FEET).
Clicking the right knob will enter the ‘F-stop
Dimming Display’ where the brightness is
dynamically displayed as an aperture or ‘F-stop‘.
Adjust the brightness with the right knob and the
display will show the adjusted F-stop aperture for
your camera.
The True Aperture Dimming™ algorithm
calculates the F-stop based on the AEOS’
brightness setting, your camera’s ISO and shutter
speed and the distance to the subject.
To re-adjust the last selected parameter, click the
right knob, make the adjustment, then click the
right knob again to return to the F-stop Dimming
Display.
Alternatively rotate the left knob to select a
different parameter to edit, and then click the
right knob to re-enter F-stop Dimming Display.
This enables you to effectively bookmark the
user parameter that is dynamically changing
during your shoot (i.e. distance to subject), and
without needing to re-meter the shot, update
the parameter and calculate the revised F-stop,
allowing you to work quickly.
You can also choose to work in reverse, i.e. you
FDIM
24