JVC KY-D29 - 5 Shooting (Applied Operations); Iris (Brightness) Adjustment; Lens Iris Agjustmene; Zebra Pattern DISPLAY During Manual Adjustment

5. SHOOTING (APPLIED OPERATIONS)
5-1 IRIS (BRIGHTNESS) ADJUSTMENT
LENS IRIS ADJUSTMENT
Iris ring The lens iris can be adjusted by 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.
* Manuai adjustment
Set the iris mode switch to “M (Manual)”.
The iris can be adjusted manually by rotating the iris ring.
© Temporary auto iris adjustment
When this button is pressed during manual iris adjustment,
the auto iris adjustment mode is activated only while this but-
Temporary auto ton is held depressed.
iris button
@ Changing the auto iris adjustment setup
Under special lighting conditions such as back-light condition,
it is often suitable to change the value set by the auto iris ad-
justment.
This can be done by any of the following methods.
* Setting the AUTO IRIS LEVEL switch of the camera head
(See page 37.)
* Setting item “IRIS” in the Main menu screen. (See page 39.)
ZEBRA PATTERN DISPLAY DURING MANUAL ADJUSTMENT
By setting the ZEBRA switch to ON, oblique stripes (zebra pat-
tern) can be displayed in the sections with.signal levels of 70% to
80% on the viewfinder screen.
The zebra pattern can be used as a reference for manual iris ad-
justment.
When adjusting the iris manually, adjust it so that the zebra pat-
terns are displayed in the section which you want to stress in the
object.
* The initial setting is 70 to 80%. However, with the “ZEBRA”
setting on the ADVANCE MENU, zebra patterns can be dis-
played in the section of over 100% in brightness level. (See
page 43)
tris mode switch
ZEBRA switch
35