10
CONTROLS, INDICATORS AND CONNECTORS
ZOOM Lens
The zoom lens is not provided with the GY-HD250CHU or
the GY-HD251CHE.
Th16 × 5.5BRMU
1
FOCUS ring
Manual focus ring.
2
ZOOM 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”.
3
IRIS 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
on the viewfinder, LCD monitor and video signal connector
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 on 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.
X
See page 86.
6
ZOOM 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.
7
IRIS mode switch
8
Momentary 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.
0
FILTER 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.
a
ZOOM servo connector
Connect an optional zoom servo unit here.
b
[ZOOM] ZOOM mode knob
c
BACK FOCUS ring/fixing screw
For back focus adjustment only. Secure with the screw
knob after adjustment.
X
See “Back Focus Adjustment”
on page 51.
d
Macro 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 (
∞
) 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.
• After the required operation, be sure to return the macro
focusing ring to the normal position.
X
See “Attaching the Zoom Lens” on page 33.
X
See “Back Focus Adjustment” on page 51.
M
RET
W
T
A
MACRO
3
2
4
5
6
7 8 9
1
0
a
b
c
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
.
e_hd250.book Page 10 Tuesday, October 24, 2006 3:11 PM
