Protech Zoom 400 Operations Instructions download pdf (Page 50)

Changing the Reference Value for Automatic Iris Adjustment

Chapter 3 Adjustments and Settings

2 Select the desired number of

accumulated frames with

“OPERATION” > “Shutter” > “SLS

Frames” in the setup menu.

The reference value for automatic iris adjustment

can be changed to aid the shooting of clear

pictures of back-lit subjects, or to prevent blown-

out highlights. The reference value for the lens

iris can be set within the following range with

respect to the standard value.

• 0.25 to 1 (increasing by increments of 0.25):

About 0.25 to 1 stop further open

• –0.25 to –1 (decreasing by increments of 0.25):

About 0.25 to 1 stop further close

Also you can set the area where light detection

occurs.

To change the reference value

1 Set “OPERATION” > “Auto Iris” >

“Iris Override” in the setup menu to

“On” (see page 117).

2 Set the MENU ON/OFF switch to OFF.

3 Turn the MENU knob to change the

reference value.

Note

Be sure to confirm that the current shutter mode is

not ECS.

An indicator of the current reference value is

shown at the iris position indication (see

page 28) on the viewfinder screen.

To make the iris more open

Turn the MENU knob counterclockwise as

seen from the front of the camcorder.

Select one of 0.25, 0.5, 0.75, or 1.

To stop down the iris

Turn the MENU knob clockwise as seen

from the front of the camcorder.

Select one of –0.25, –0.5, –0.75, or –1.

The changed reference value is retained until

the power of the camcorder is turned off.

Even if the reference value is changed, it

reverts to the standard value every time the

power is turned on.

Changing the Reference

Value for Automatic Iris

Adjustment

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Protech Zoom 400 Operations Instructions Page 50

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