JVC GY-DV550E Instruction Manual - Page 87

IRIS Brightness Adjustment

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13. FEATURES OF THE CAMERA SECTION 13-2 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 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 90. ZEBRA PATTERN DISPLAY DURING MANUAL ADJUSTMENT PUSH OFF ZEBRA SKIN AUTO ON AREA WHITE ACCU FOCUS VTR AUDIO TAKE LEVEL CH-1 ZEBRA switch 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. • When CHARACTER of the Camera SETUP Menu screen is set to ON, the zebra pattern will also appear in the MONITOR OUT connector video. • The zebra pattern will also appear during color bar output when the ZEBRA switch is set to ON. • 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 78. 87

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13. FEATURES OF THE CAMERA SECTION
87
M
RET
W
T
A
Iris ring
Iris mode switch
Temporary auto iris
button
ADJUSTMENT OF LENS IRIS
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 90.
ZEBRA PATTERN DISPLAY DURING MANUAL ADJUSTMENT
13-2
IRIS (Brightness) Adjustment
AUTO
WHITE
SKIN
AREA
ACCU
FOCUS
TAKE
VTR
PUSH
ZEBRA
AUDIO
LEVEL CH-1
ON
OFF
ZEBRA switch
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.
•
When CHARACTER of the Camera SETUP Menu screen is
set to ON, the zebra pattern will also appear in the MONITOR
OUT connector video.
•
The zebra pattern will also appear during color bar output
when the ZEBRA switch is set to ON.
•
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 78.