14.4 Exposure Calculation

The exposure calculation is a very powerful feature of the WRC-2. It reduces the workload of a ramp exposure calculation to a simple transfer of the exposure value from a light meter to the WRC-2.

Once the working f-stop for a shot is determined by the DP and entered in the WRC-2, all exposure compensations will be calculated automatically.

To Enable the Exposure Calculation:

In the Ramp Menu click on „Options“

Check „Enable“ in the Exposure Meter Window

Enter speed and shutter values of the exposure meter that is used on the set. (values will be stored)

Click „Exit“ to go back to the Ramp Menu

Use the Exposure Calculation:

Measure the light to determine the working f-stop.

Click on the „Exposure Meter“ Window and enter the working f-stop by using the sliders.

Read the calculated f-stop in the Iris Display and set the iris value on the lens.

Note: Since there is no compensation selected, the current settings will lead to a two stop underexposure. See the Exp. Diff. (Exposure Difference) indicator window.

Ramp Options Menu

Ramp Control Menu

Ramp Control Menu

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ARRI WRC-2 instruction manual To Enable the Exposure Calculation, Use the Exposure Calculation