Adjusting the Iris Lenz

Adjust the aperture of the lens iris according to the brightness of the subject.

GY-LS300_IrisAdjust

Auto Iris (Automatic Adjustment) Mode

Set the [AUTO MODE FULL/PRESET/OFF] switch 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.
A Auto icon appears on the left side of the lens aperture value (F-number) during Auto Iris mode.

Memo

When the [AUTO MODE FULL/PRESET/OFF] switch is set to “PRESET”, the Auto Iris mode is also enabled if [Main Menu] arrowR [Camera Function] arrowR [PRESET AUTO] arrowR [Iris Control] has been set to Auto mode (“Auto”).

Iris Control

Setting the [AUTO MODE FULL/PRESET/OFF] switch to “FULL” 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] switch is disabled in the Full Auto mode.

The iris open/close limit can be set in [Main Menu] arrowR [Camera Function] arrowR [Auto Iris Limit (OPEN)]/[Auto Iris Limit (CLOSE)] during Auto Iris.

Auto Iris Limit (OPEN) Lenz
Auto Iris Limit (CLOSE) Lenz

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 U_botton / D_botton volume button.

The convergence speed of the auto iris can be set in the menu.

AE Speed

While in the Auto Iris mode, and [AE/FAW Lock] is set to “AE” or “AE/FAW”, a AE Lock icon appears on the left side of the lens aperture value (F-number) during lock operation.

AE/FAW Lock

Manual Iris (Manual Adjustment) Mode

The aperture value (F-number) of the lens can be set manually.

Set the [AUTO MODE FULL/PRESET/OFF] switch to “OFF”.
Press the [IRIS A/M] button to set to the Manual Iris mode.

The lens aperture value (F-number) is displayed.

GY-LS300_ManualIris
Turn the iris dial to adjust the iris manually.

F-number

Description

Decrease

The subject appears brighter.
The focused range becomes sharper, while the background is blurred to produce a soft image.

Increase

The subject appears darker.
Background of image becomes focused as well.
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.