12. FEATURES OF THE CAMERA SECTION
12-2 IRIS (Brightness) Adjustment
| 12. FEATURES OF THE CAMERA SECTION |
| Adjusting the Shutter Speed |
ADJUSTMENT OF LENS IRIS
The lens iris can be adjusted using any of the
Adjust the shutter speed to obtain special effects or when shooting scenes with |
Iris ring
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 |
POWER VTR
Setting
■Set the SHUTTER item on the CAMERA OPERATION menu screen.
STEP | : The shutter speed is changed in fixed steps. |
VARIABLE: The shutter speed is changed with variable scan. | |
| This setting is used for shooting the screen |
| image on a computer monitor, etc. |
Operation | |
RET | M |
| A |
W T
Temporary auto iris button
Iris mode switch
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 84.
| SHUTTER | STA | |
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SHUT- |
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|
TER |
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dial |
| MENU |
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CAMERA OPERATION menu screen | |||
SHUTTER |
| STEP | |
FAW |
|
| NONE |
GAIN | L |
| 0dB |
GAIN | M |
| 6dB |
GAIN | H |
| 9dB |
1. Rotate the SHUTTER dial while the normal screen is shown. (when menu screens are not displayed). (If “SHUTTER OFF” is displayed, press the SHUTTER dial.)
●The current shutter speed is shown on the LCD monitor or in the viewfinder for approximately 3 seconds.
2. Rotate the SHUTTER dial while the shutter speed is shown. Rotating the dial downward makes the shutter slower, and rotating it upward makes it faster.
3. Stop rotating the SHUTTER dial when the desired shutter speed is indicated. The set shutter speed value is displayed for about 3 seconds on the LCD monitor or in the viewfinder. Setting range STEP: 1/7.5, 1/15, 1/30, 1/60, 1/100, 1/250, 1/500, 1/1000, 1/2000, 1/4000, 1/10000 VARIABLE: 1/60.1 Hz to 1/2084.6 Hz
ZEBRA PATTERN DISPLAY DURING MANUAL ADJUSTMENT
LOLUX GAIN |
| 30dB |
SMOOTH TRANS |
| OFF |
SPOT L/BACK | L | MIDDLE |
ASPECT RATIO |
| 4:3 |
PAGE BACK |
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|
■ To return the shutter speed to the initial setting, press |
the SHUTTER dial. |
OFF ZEBRA
ON | SKIN | AUTO | |
AREA | WHITE | ||
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| ACCU | |
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| FOCUS | |
| VTR | AUDIO | |
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| LEVELE | |
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| 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 73.
Initial setting: OFF (“SHUTTER OFF” is indicated on the |
screen.) |
SHUTTER 1/1000
ZEBRA switch
Shutter speed indication
SHUTTER OFF
Indication of initial shutter speed value
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