JVC GY-DV5001 manual Iris Brightness Adjustment, Automatic adjustment, Manual adjustment

12. FEATURES OF THE CAMERA SECTION

12-2 IRIS (Brightness) Adjustment

ADJUSTMENT OF LENS IRIS

Iris ring

RET	M
	A

W T

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 87.

ZEBRA PATTERN DISPLAY DURING MANUAL ADJUSTMENT

OFF ZEBRA

ON	SKIN	AUTO
	AREA	WHITE
		ACCU
		FOCUS

VTR AUDIO

LEVELE CH-1

5

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.

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

●The initial setting is 70 to 80%. However, using the ZEBRA setting on the LCD/VF (1/2) menu screen, zebra patterns can be displayed in the sections with a luminance level of 85 to 95%, over 95% and over 100%.

☞ See “LCD/VF Menu Screen” on page 75.

ZEBRA switch

E-83