Iris (Brightness) Adjustment; Adjustment Of Lens Iris; Zebra Pattern Display During Manual Adjustment - JVC GY-DV500U Instructions Manual

13. FEATURES OF THE CAMERA SECTION

13-2 IRIS (Brightness) Adjustment

ADJUSTMENT OF LENS IRIS

Iris ring
RET
W T

ZEBRA PATTERN DISPLAY DURING MANUAL ADJUSTMENT

OFF
ON
ZEBRA switch
80
M
A
Temporary auto iris
button
Iris mode switch
ZEBRA
SKIN AUTO
AREA WHITE
ACCU
FOCUS
VTR
AUDIO
TAKE
LEVEL CH-1
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 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 methods.
• Setting the AUTO IRIS LEVEL switch of the camera
See "SWITCH FUNCTIONS" on page 83.
By setting the ZEBRA switch to ON, oblique stripes (zebra
pattern) can be displayed in the sections with a luminance level
of 70% to 80% or sections with levels over 100% in the
viewfinder.
The zebra pattern can be used as a reference for manual iris
adjustment.
When adjusting the iris manually, adjust it so that the zebra
patterns are displayed in the section that you want to stress in
the subject.
• The initial setting is 70 to 80%. However, using the "ZEBRA"
setting on the VF DISPLAY MENU, zebra patterns can be
displayed in the sections with a luminance level of 85 to 95%,
over 95% and over 100%.
See "VF DISPLAY MENU Screen" on page 72.