Zoom Lens - JVC GY-HM790CHU Instructions Manual

Introduction
Names of Parts (continued)

Zoom Lens

(Supplied with GY-HM790U/GY-HM790E only)
CANON KT14 x 4.4KRSJ
D E
K
A
Focus Ring
B
Zoom Lever/Ring
To operate zoom with this lever, turn the [ZOOM] switch M
and set it to AMANU.B.
C
Iris Ring
To operate auto iris, set the iris mode switch H to AAB.
D
Lens Cable
E
[REC] Record Trigger Button
Starts/stops recording.
F
[RET] Return Video Button
Press this button to play back and check the latest clip,
according to the settings under [Clip Review] of [Switch Set]
in the [Camera Function] menu. (A Page 79)
(A Page 56 [Viewing Recorded Videos Immediately (Clip
Review)])
Memo :
● When [LENS RET] of [Switch Set...] in the [Camera Function]
menu is set to AFocus AssistB, this button functions as the
Focus Assist button. When it is set to AReturnB, a return
video is displayed. (A Page 79)
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F G H I J
M
SER VO
MAN U.
L M N
G
Zoom Servo Control Lever
To operate zoom servo with the zoom servo control lever, set
the [ZOOM] switch M to ASERVOB.
● Zooms into wide angle and increases the angle of view
when AWB is pressed.
● Zooms into telephoto and decreases the angle of view when
ATB is pressed.
● Zoom speed increases when the lever is pressed hard.
H
Iris Mode Switch
: Auto iris operation mode.
A
: Manual iris operation mode.
M
I
Iris Momentary Button
Press and hold this button to change to auto iris mode when
the iris mode switch H is set at AMB.
J
[I.G.] Iris Speed Adjustment Knob
If the speed is set too fast, opening/closing of the iris
becomes unstable and hunting may occur. Readjust the
speed in this case.
K
Filter Built-In Screw
A transparent or UV filter for lens protection can be installed
inside the lens hood from the front. Filters for various effects
can also be used.
● Installable filter types
When installed on the hood
When installed on the lens body : 72 mm P0.75
L
Zoom Servo Connector
For connecting a zoom servo unit (sold separately).
M
[ZOOM] Zoom Switch
SERVO : Enables zooming with the zoom servo control
lever G.
O : Enables zooming with the zoom lever/ring B.
MANU.
N
Back Focus Ring/Lock Screw
Exclusive ring for adjusting the back focus. After adjusting,
secure with a lock screw.
(A Page 28 [Adjusting Back Focus])
O
[M] Macro Focus Ring (for close-ups)
Turn the ring in the direction of the arrow to take close-up
shots of small objects.
Normal focusing and zooming cannot be performed in macro
mode.
To take macro shots
● Set focus ring A to infinity (n).
● Set zoom ring B to the maximum wide angle.
● Rotate this ring in the direction of the arrow to adjust
focus on the object.
Note :
● As the back focus knob is located nearby, be careful not to
mistake the two knobs.
● Do not forget to restore the macro ring to its original position
after use. (A Page 28 [Adjusting Back Focus])
: 82 mm P0.75