Setting Gain. JVC GY-HM710, GY-HM750

Shooting

Setting Gain

This function electrically boosts the light sensitivity when there is insufficient illumination on the object. You can set the gain of the video amplifier according to the brightness of the object. Select the setting mode according to your shooting conditions.

[GAIN] Selection

Switch

[FULL AUTO]

Switch

Setting the Electronic

Shutter

You can change the shutter speed (time for each shooting frame) using the electronic shutter function. Electronic shutter can be adjusted manually or automatically.

Fixed Shutter Mode (Manual Shutter

Switching)

Use the Set button ( R ) to switch between the shutter modes and the cross-shaped button ( JK ) to switch between the speeds.

[FULL AUTO] Switch

Fixed Gain Mode (Manual Gain Switching)

You can select the gain of the video amplifier using the

[GAIN] switch on the camera recorder.

The default positions of the switch are as follows.

[L] : 0 dB (No electrical boosting.)

[M] : 9 dB (Boosts sensitivity by about 2.8 times.)

[H] : 18 dB (Boosts sensitivity by about 8 times.)

Memo :

● The gain value of each position can be set to AALCB and within the range of A0dBB to A18dBB (in increments of 3 dB) in the menu. Increasing the sensitivity causes the screen to appear grainier. (A Page 79)

Automatic Gain Mode (Automatic Gain

Adjustment)

Set the [FULL AUTO] switch on the camera recorder to AONB to enter Automatic gain Level Control (AALCB fixed). The gain of the video amplifier is automatically set according to the brightness of the object.

In this case, the [GAIN] switch on the camera recorder is disabled.

Memo :

● When [Gain] in the [Camera Function] B [FULL AUTO] menu is set to ASW SetB, you can switch the gain with the

[GAIN] switch even if the [FULL AUTO] switch on the camera recorder is set to AONB. (A Page 81)

Set Button ( R)

Cross-Shaped Button

( JK)

�Switching Shutter Mode

Press the Set button (center of the cross-shaped button) to turn ON/OFF the shutter.

Memo :

● When the shutter is ON, AStepB, AVariableB, or AEEIB

(Extended Electric Iris, i.e. Automatic Shutter mode) may be selected using [Shutter] in the [Camera Function] menu. AStepB is the factory default. (A Page 78)

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�Switching Shutter Speed

When shutter is ON, use the cross-shaped button ( JK ) to set the shutter speed. Shutter speed differs according to the video format and variable frame rate settings.

� During modes other than Variable Frame Rec

Shutter

Camera

Resolution/

Frame &

Bit Rate

720/60p

720/30p

1080/60i

1080/30p

480/60i

720/50p

720/25p

1080/50i

1080/25p

576/50i

720/24p

1080/24p

J Button

K Button

J Button

Step

(Standard)

(Upper limit)

1/10000 1/10000

1/4000

1/2000

1/1000

1/4000

1/2000

1/1000

1/500

1/250

1/100

1/500

1/250

1/120

1/60

1/30

1/15

1/7.5

1/50

1/25

1/12.5

1/6.25

1/10489.5

1/10000

1/4000

1/2000

1/1000

1/500

1/250

1/100

1/60

1/48

1/24

1/12

1/6

Variable (Standard) 1/60.00

to

1/50.00

to

1/48.00

K Button (Lower limit)

1/30.03

1/25.04

1/24.01

� During Variable Frame Rec

J Button

K Button

J Button

Shutter

Step

Camera

Resolution/

Frame & Bit

Rate

Frame

Rate

720/30p

720/24p

60, 30, 15 48, 24, 12 40, 20, 10

(Standard)

1/10000

1/4000

1/2000

1/1000

1/500

1/250

1/100

1/60

1/30

1/15

1/7.5

1/10000

1/4000

1/2000

1/1000

1/500

1/250

1/100

1/60

1/48

1/24

1/12

1/6

1/10000

1/4000

1/2000

1/1000

1/500

1/250

1/100

1/60

1/48

1/40

1/20

1/10

1/5

(Upper limit)

1/10489.5

Variable to

K Button (Lower limit)

1/60.00

1/48.00

1/40.00

J Button

Shutter

Camera

Resolution/

Frame &

Bit Rate

Frame

Rate

K Button

J Button

Step

(Standard)

(Upper limit)

720/25p

50, 25, 12.5

40, 20, 10

1/10000

1/4000

1/2000

1/1000

1/500

1/250

1/120

1/50

1/25

1/12.5

1/6.25

1/10489.5

1/10000

1/4000

1/2000

1/1000

1/500

1/250

1/120

1/50

1/40

1/20

1/10

1/5

Variable to

K Button (Lower limit)

1/50.00

1/40.00

Memo :

● Shutter speed is usually displayed in seconds (SEC).

However, only when [Frame & Bit Rate] is set to A24p

(SP)B, A24p (HQ)B, A25p (SP)B, or A25p (HQ)B, the speed can be displayed in angle (DEG).

( A Page 75 [Frame & Bit Rate])

( A Page 91 [Shutter Disp.])

Automatic Shutter Mode (Automatic

Shutter Adjustment)

Set the [FULL AUTO] switch on the camera recorder to AONB to enter the automatic shutter adjustment mode. The shutter speed is automatically adjusted according to the brightness of the object.

Switching of shutter speed with the cross-shaped button

( JK ) and switching of shutter mode with the Set button ( R ) are disabled.

Memo :

● When [Shutter] in the [Camera Function] B [FULL AUTO] menu is set to ASW SetB, you can switch the shutter mode with the Set button ( R ) and shutter speed with the crossshaped button ( JK ) even if the [FULL AUTO] switch on the camera recorder is set to AONB. (A Page 81)

● When [Shutter] in the [Camera Function] B [FULL AUTO] menu is set to AEEIB, the camera recorder enters

Automatic Shutter Adjustment mode. Switching of shutter mode with the Set button ( R ) and shutter speed with cross-shaped button ( JK ) is disabled. (A Page 81)

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