10
CONTROLS, INDICATORS AND CONNECTORS
ZOOM Lens
The zoom lens is not provided with the GY-HD250CHU or
the GY-HD251CHE.

Th16 × 5.5BRMU

1FOCUS ring
Manual focus ring.
2ZOOM lever/ring
This is the manual zoom ring equipped with a zoom lever.
To adjust the zoom manually, turn the zoom mode knob b
to position “M”.
3IRIS ring
Manual iris ring. To activate the auto iris feature, set the
Iris Mode switch 7 to “A”.
4[VTR] VTR trigger button
To start/stop shooting.
5[RET] Return video button
You can only monitor the return video signal from the VTR
from the viewfinder, LCD monitor and video signal connec-
tor while this button is pressed.
When the camera control unit is connected, you can moni-
tor the return video signal on the viewfinder while this but-
ton is pressed. You cannot monitor from the LCD monitor
or video output terminal.
When you set the LENS RET item to “FOCUS ASSIST” in
the SWITCH MODE menu screen, you can use this button
as the FOCUS ASSIST button.
XSeepage86.
6ZOOM servo control lever
To operate the servo zoom feature with this lever, set the
ZOOM knob b to “S”.
• Pressing the “W” section of this lever increases the
angle of the lens for a wider shooting angle.
• Pressing the “T” section of this lever narrows the lens
angle perspective for telephoto shots.
• Pushing harder changes the speed of the zoom.
7IRIS mode switch
8Momentary auto iris button
When the IRIS mode switch 7 is at “M”, pushing this but-
ton activates the Auto Iris Function while it is held down
only.
9[S] IRIS speed adjusting control
For adjusting the iris operation speed.
MEMO
If the speed becomes too fast, hunting may occur. To avoid
the phenomena described above, perform adjustment
again.
0FILTER thread
Protect the lens with a clear filter or UV filter by screwing
the filter onto the thread inside the lens hood from the
front.
Other filters can be used for various effects.
aZOOM servo connector
Connect an optional zoom servo unit here.
b[ZOOM] ZOOM mode knob
cBACK FOCUS ring/fixing screw
For back focus adjustment only. Secure with the screw
knob after adjustment. XSee“Back Focus Adjustment”
onpage 51.
dMacro focusing ring (for close-up shooting)
By rotating this ring in the direction of the arrow, close-up
shooting of very small objects becomes possible.
Normal focus adjustment and zooming are not available in
the macro mode.
To shoot images in the macro mode, set the focus ring 1
to the infinite position (f) and the zoom ring 2 to the max-
imum wide-angle position. To adjust the focus of the
macro image, rotate this ring in the direction of the arrow
until the object is focused.
CAUTION
• The back-focus knob is located close to the macro ring,
be careful not to mistake the back-focus knob for the
macro ring.
• A fter the required operation, be sure to return the macro
focusing ring to the normal position.
XSee“Attaching the Zoom Lens” on page 33.
XSee“Back Focus Adjustment” on page 51.
M
RET
WT
A
MACRO
32
456789
1
0
abc
d
A :Activates the auto iris feature.
M : Allows manual iris control.
S :Servo zoom mode. Allows operation by the zoom
servo control lever 6.
M : Manual zoom mode. Allows zoom control by the
zoom lever/ring 2.
11
Front Section
1Shoe
Makes it possible to mount separately sold lights and
accessories.
2Knob
This is the mounting knob for the microphone holder 3.
3Microphone holder
Makes it possible to attach the provided microphone or a
separately sold microphone.
XSee“Attaching the Microphone (Provided)”
onpage 33.
4Front tally lamp
This lamp lights up when the GY-HD250/GY-HD251 enters
the record mode. It blinks during the transition to the
record mode.
When the tape has run out, or the VTR enters the warning
mode, it blinks quickly.
• Use the FRONT TALLY item on the OTHERS[1/2] menu
screen to select whether or not the lamp should light
and the lighting pattern.
XSeepage96.
5[LENS] Lens control connector
Connect 12-pin lens control cable from lens here.
6[ZEBRA] Zebra switch
When this switch is ON, a zebra pattern is imposed on the
viewfinder or LCD areas having luminance levels in accor-
dance with the menu settings made for the video signal.
This pattern can be used as a reference for manual adjust-
ment of the lens iris. Zebra patterns are also displayed
during color bar display when this switch is set to ON.
• The default value is 70% - 80%. The luminance level
can be changed with the ZEBRA setting in the LCD/
VF[1/4] menu screen.
XSeepage 89.
While this switch is pressed to the SKIN AREA side, the
color tone areas specified with the SKIN COLOR ADJUST
item on the ADVANCED PROCESS menu are indicated in
the viewfinder. The switch returns to the OFF position
when released.
XSee“How to Use Skin Detail” on page 103.
* The Skin Detail color tone areas a re not indicated while
the color bar or VTR playback picture is shown in the
viewfinder or on the LCD monitor.
7[AWB] Auto white balance button
When the WHT.BAL switch c on page 15 is set to A or B
and you press this button, the white balance is automati-
cally adjusted.
* It is not activated in preset, full auto shooting, full auto
white balance and color bar modes.
XSee“White Balance Adjustment” on page 52.
8Lens mounting ring/Lens lock lever
Hold the lens and use the lever to turn the ring anticlock-
wise to release lens.
To mount lens make sure the lens guide pin fits well, and
then turn the ring clockwise until firm.
XSee“Attaching the Zoom Lens” on page 33.
Pin
No. Function Pin
No. Function
1 Return switch 7 Iris position
2 VTR trigger 8 IRIS A/R INPUT
3 GND 9 EXTENDER position
4
Lens AUTO/MANU con-
trol
10 ZOOM position
5 IRIS control 11 –
6 +12V DC 12 –
32 1
4
5
8
7
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