12. FEATURES OF THE CAMERA SECTION

12-1 Full-Time Auto White Balance (FAW)

12. FEATURES OF THE CAMERA SECTION

12-2 IRIS (Brightness) Adjustment

––– CAMERA OPERATION –––

 

SHUTTER

STEP

 

FAW

A

 

GAIN L

0dB

 

GAIN M

6dB

 

GAIN H

9dB

 

LOLUX GAIN

30dB

 

SMOOTH TRANS

OFF

 

SPOT L/BACK L

MIDDLE

 

ASPECT RATIO

4:3

 

PAGE BACK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The FAW function adjusts the white balance value automatically as the lighting condition changes.

This mode is convenient when you have no time to adjust the white balance or when the camera is moved frequently in and out of places under different lighting conditions.

Setting procedure

The FAW function can be activated with the FAW item on the CAMERA OPERATION menu.

This item allows allocation of the FAW function to one of the WHT.BAL switch positions, A, B or PRST.

See “CAMERA OPERATION Menu Screen” on page 75.

CAUTION:

The FAW (Full-time Auto White balance) function cannot provide optimum white balance with a subject outside the FAW adjustment range, for example when it contains only a single color or not enough white color.

ADJUSTMENT OF LENS IRIS

Iris ring

RET

M

 

A

WT

Temporary auto iris button

Iris mode switch

The lens iris can be adjusted using any of the following three methods.

Automatic adjustment

Set the iris mode switch to “A” (Auto).

The iris is adjusted automatically according to the brightness of the object.

Manual adjustment

Set the iris mode switch to “M” (Manual).

The iris can be adjusted manually by rotating the iris ring.

Temporary auto iris adjustment

During manual iris adjustment, the auto iris adjustment mode is activated only while this temporary auto iris button is held depressed.

Changing the auto iris adjustment setup

Under special lighting conditions such as backlight, it is often appropriate to change the value set by the auto iris adjustment.

This can be done by the following method.

Setting the AUTO IRIS LEVEL switch of the camera See “SWITCH FUNCTIONS” on page 93.

POWER

VTR

ZEBRA PATTERN DISPLAY DURING MANUAL ADJUSTMENT

ON

OFF

 

 

 

 

 

 

 

 

 

By setting the switch to ON, oblique stripes (zebra pattern) can

 

 

 

 

 

be imposed on the viewfinder or LCD areas having luminance

 

 

 

 

 

levels in accordance with the menu settings made for the video

 

 

 

 

 

signal.

WHT.BAL switch

 

 

 

The zebra pattern can be used as a reference for manual iris

 

OFF ZEBRA

 

adjustment.

 

 

ON

SKIN

AUTO

 

 

 

AREA

WHITE

The initial setting is 70 to 80%. However, using the ZEBRA

 

 

 

 

FOCUS

 

 

 

 

ACCU

 

 

 

 

VTR

AUDIO

setting on the LCD/VF (1/2) menu screen, zebra patterns

 

 

 

 

LEVELE CH-1

can be displayed in the sections with a luminance level of 85

 

 

 

 

5

 

 

 

 

 

to 95%, over 95% and over 100%.

 

 

 

 

 

See “LCD/VF Menu Screen” on page 81.

 

 

ZEBRA switch

 

88

89

Page 66
Image 66
JVC GY-DV5100 Features of the Camera Section, Full-Time Auto White Balance FAW, Iris Brightness Adjustment