Controlling the Iris

ramp Iris

comp. off

PROG

PROG

PROG

fps

PROG

5.5.5 Ramp iris / compensation off

The iris of the lens is continuously adjusted within the predefined limit values over a pre-defined period of time after pressing the RAMP button (ramp, definition see Glossary).

Differences in exposure are not automatically compensated for.

The main menu shows ‘RA’ in the first line to indicate the ramp function, and the currently adjusted T-stop of the lens 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.

Note

The following warnings may be displayed:

 

‘IRIS TBL’ – a valid iris table has not yet been

 

activated;

 

readings with ‘NO’ in the first display line

 

indicate that the selected function is currently

 

not available (example: ‘NO IRIS’ although the

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