Adjust the aperture of the lens iris according to the brightness of the subject.
Adjusting the Iris
Auto Iris (Automatic Adjustment) Mode
Press and hold the [FULL AUTO] button to set Full Auto mode to off.
Press the [IRIS A/M] button to set to the Auto Iris mode.
The iris is automatically adjusted according to the brightness of the object.
The lens aperture value (F-number) is not displayed in the Auto Iris mode.
Memo
Pressing and holding the [FULL AUTO] button to enter the Full Auto mode also activates the Auto Iris mode. In this case, the Gain, Shutter and White Balance also enter into Auto mode forcibly.
The switching operation of the [IRIS A/M] button is disabled in the Full Auto mode.
The iris open/close limit can be set in [Main Menu] 
[Camera Function] [Auto Iris Limit (OPEN)]/[Auto Iris Limit (CLOSE)] during Auto Iris.
To set the target level (brighter/darker) of the auto iris, you can press and hold the [AE LEVEL] button on the side of the camera recorder and then change the level using the 
/ 
volume button.
The convergence speed of the auto iris can be set in the menu.
Manual Iris (Manual Adjustment) Mode
The aperture value (F-number) of the lens can be set manually.
Press and hold the [FULL AUTO] button to set Full Auto mode to off.
Press the [IRIS A/M] button to set to the Manual Iris mode.
The lens aperture value (F-number) is displayed.
Turn the iris dial to adjust the iris manually.
Iris adjustment can be assigned to the zoom ring.
Set [Main Menu] [Camera Function] [Zoom Ring] to “Iris”.
The open F-number of the aperture varies according to the zoom position.
Wide [W] end:
F1.2
Tele [T] end:
F3.5
|
F-number |
Description |
|---|---|
|
Decrease |
The subject appears brighter. |
|
Increase |
The subject appears darker. |
Memo
If [One Push Iris] is assigned to the user button, pressing the assigned user button while in the Manual Iris mode activates the One-push Auto Iris mode, and holding down the button activates the Push Auto Iris mode.
In addition to the [Iris] function, the iris dial can also be assigned with the [Shutter] or [AE Level] function.
One Push Auto Iris
When [One Push Iris] is assigned to the user button, press this button in the Manual Iris mode to adjust the iris according to the brightness of the subject.
Push Auto Iris
When [One Push Iris] is assigned to the user button, press and hold down this button in the Manual Iris mode to change to the Auto Iris mode temporarily. The iris will be automatically adjusted according to the brightness of the subject.
About the Iris F-number
Blurry effects due to “small aperture diffraction” may occur when the diameter of the iris becomes too small. When this phenomenon occurs, the F-number on the screen turns gray to warn you that the diffraction F-number of the iris has been exceeded.
You are recommended to make appropriate use of ND filters to prevent the F-number from turning gray.
