ARRI WRC-1 - Manual (Page 66)

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PROG
PROG
PROG
fps
PROG
PROG
ramp Iris
comp. <)
5.5.6 Ramp iris /
compensation shutter angle
The iris of the lens is continuously adjusted within the pre-set
limit values (master value: Iris) over a pre-defined period
of time after pressing the RAMP button (ramp, definition
see Glossary).
The mirror shutter angle is automatically adjusted by the
WRC-1 within the pre-defined limit values, to compensate
the exposure.
The visible depth of field can be altered with this function.
In the main menu the automatically calculated shutter angle
is shown in the first display line, and the current T-stop is
shown in the second line.
The display shows full T-stops followed by the tenth of a
T-stop. Example: T-stop 2.8 plus half a T-stop is shown as
2.8_5. The tenths of a T-stop are linearly divided between
the two full T-stop positions.
The ‘PROG’ symbol indicates that a time-controlled ramp
function has been selected.
Controlling the Iris