Gain adjustment, Iris adjustment, Gain adjustment iris adjustment – JVC RM-LP25U User Manual

Page 27: Mode. the gain cannot be varied in this mode, A page 29 [operable camera features]), Gy-hm790 series, Close open] control knob

Advertising
background image

17

When the illumination of the object is insufficient, the
electrical gain can be boosted as described below.

Memo :

● When the [FULL AUTO] or [ALC + EEI] is ON, the gain

becomes ALC. However, the Gain is Lolux in the Lolux

mode. The gain cannot be varied in this mode.

1

The gain is boosted according to the position of the

[GAIN-STEP] switch as shown below
(The gain boost values shown below are factory
settings.)

The gain boost values of these switch positions can be
modified to the following values.
(Available values: -3 dB, 0 dB, 3 dB, 6 dB, 9 dB, 12 dB, 15dB,
18 dB)
( A Page 25 [GAIN LOW], [GAIN MID] and [GAIN HIGH])

Memo :

● Values that are not available on the camera cannot be set

on this unit.

● A-3 dBB is not displayed when connected to GY-HM790

series.

(A Page 29 [Operable Camera Features])

2

When the [GAIN] control knob is pressed, the Variable

Gain mode starts and the [GAIN] light is turned on

Memo :

● The gain value set in the Variable Gain mode is applied in

priority over the gain switch setting.

● This function is unavailable when connected to

GY-HM790 series.

3

The gain can be fine adjusted between 0.1dB and

18dB in 0.1dB steps in the Variable Gain mode. Also, in
this mode, the maximum gain value can be set to

A9 dBB,

A12 dBB or A18 dBB
When the variation step is set to

A1.0 dBB, the gain can be

varied from 1dB to 18dB in 1dB steps.
( A Page 25 [V. GAIN STEP] and [V. GAIN MAX])

The camera lens iris can be adjusted from the
RM-HP790DU/RM-HP790DE.

Memo :

● When the light in the [IRIS-AUTO/MANU] button is not lit,

the iris control is set to Auto mode, in which the iris level is
controlled automatically according to the light intensity.
The auto iris value cannot be adjusted with the [IRIS-

CLOSE OPEN] control knob.

1

When the light in the [IRIS-AUTO/MANU] button is lit

by pressing the button, the iris control is set to Manual
mode, in which the iris level can be controlled using the
[IRIS-CLOSE OPEN] control

Memo :

● Set [IRIS MODE] switch of lens to side AAB.

● When [ALC + EEI] or [FULL AUTO] is AONB, the [IRIS-

AUTO/MANU] button is forced to the Auto mode.
( A Consult the [INSTRUCTION MANUAL] of the camera

in use.)

Gain Adjustment

LOW

: 0 dB (No gain boost)

MID

: 9 dB (Gain approximately tripled.)

HIGH

: 18 dB (Gain approximately octupled.)

SHUTTER

GAIN

F3

MENU/SHUTTER

GAIN

PAINT

AUTO

B

R

W.BAL

WHITE

STEP

SHUTTER

MENU

PUSH-ON

DOWN

UP

VARIABLE

PUSH-ON

HIGH

LOW

B

A

PRESET

MID

DOWN

UP

F4

9dB

[GAIN] control knob

[GAIN] light

Gain display

[GAIN-STEP] switch

Iris Adjustment

WHITE

MASTER BLACK

IRIS

P

PAINT

R

AUTO

B

H

W.BAL

POWER

AUTO
MANU

B

A

CLOSE

OPEN

PRESET

W

MID

REMOTE CONTROL UNIT RM-HP790

[IRIS-CLOSE OPEN] control knob

[IRIS-AUTO/MANU] button

W

T

[IRIS MODE] switch

Advertising
This manual is related to the following products: