Controlling the Shutter Angle

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comp. Iris

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5.6.2Shutter angle / compensation iris

The mirror shutter angle can be manually adjusted within the pre-defined end-stops of the handwheel

(master value: Shutter angle).

The exposure is automatically compensated for with the iris of the lens. The visible depth of field can be altered with this function.

If the iris control is not available, the flashing warning

‘NO IRIS’ is displayed in the main menu. Connect the iris control as described in chapter 4.1.2, calibrate the lens and assign the T-stops as described in chapter 5.5.1!

The main menu shows in the first display line the currently adjusted mirror shutter angle. The second display line shows the currently adjusted T-stop of the lens, which is automatically calculated within the pre-defined limit values. 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.

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