7-20. Automatic Iris Adjustment

7-20. Automatic Iris Adjustment

16:9 mode

Preparation

.On the setup menu, set as follows.

PAGE

: S24*LEVEL 7

ITEM

: TEST OUT → ENC

.OUTPUT/DCC switch (inside panel) → CAM/ON

.Shoot a grayscale chart (16:9) in the full underscanned monitor frame.

.Lens IRIS → AUTO

Adjustment Procedure

Equipment : Waveform monitor

Test point : TEST OUT connector

1. Select the 16:9 mode.

PAGE

: S14*WIDE SCREEN

ITEM

: 16:9/4:3 MODE → 16:9

2. On the setup menu, adjust as follows.

PAGE

: S29*LEVEL 12

ITEM

: IRIS MODE

Spec.

: Set depending on the application.

 

(Automatic iris operation mode setting

 

can be done from the average level to

 

peak-to-peak level of the video signal.)

IRIS MODE = MIN → peak-to-peak level

IRIS MODE = MAX → average level

3. On the setup menu, adjust as follows.

PAGE

: S29*LEVEL 12

ITEM

: IRIS SET

Spec.

: A = 100 ±2 IRE (NTSC)

 

A = 700 ±14 mV (PAL)

 

 

 

 

A

4. On the setup menu, set as follows.

PAGE

: S29*LEVEL 12

ITEM

: IRIS WEIGHT → 0 (MIN)

5.Shoot an area where the auto iris is not wanted to work in the white window chart.

6. On the setup menu, adjust as follows.

PAGE

: S29*LEVEL 12

ITEM

: IRIS WEIGHT

Spec.

: Increment the IRIS WEIGHT value

 

until the lens iris is open.

7. On the setup menu, adjust as follows.

PAGE

: S29*LEVEL 12

ITEM

: IRIS SPEED (Factory setting: 2)

Spec.

: Set to the desired operation speed of

 

auto iris.

8. On the setup menu, set as follows.

PAGE

: S29*LEVEL 12

ITEM

: CLIP HIGH LIGHT → ON or OFF

Spec.

: Adjust for AUTO iris level to the

 

customer’s specifications.

DVW-790WS/709WS/707

7-33

DVW-790WSP/709WSP/707P P2V1

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Sony DVW-709WS/709WSP, DVW-790WS/790WSP manual Automatic Iris Adjustment, Iris Mode, Iris SET, Iris Weight → 0 MIN