JVC GY-HM620U Instruction Manual - Page 55
Setting the Gain, Manual Gain Mode Manual Gain, Switching, Automatic Gain Mode Automatic Gain
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Shooting Setting the 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 FULL AUTO L ON M H OFF Automatic Gain Mode (Automatic Gain Adjustment) 1 Set the [FULL AUTO] switch to "ON". The a icon appears on the screen. Memo : 0 Set the [FULL AUTO] switch on the camera recorder to "ON" to enter the Automatic Gain mode ([AGC] 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 : 0 The upper limit of the gain setting value during AGC operation can be set in [Main Menu] B [Camera Function] B [AGC Limit]. (A P99 [ AGC Limit ] ) . Manual Gain Mode (Manual Gain Switching) 1 Press the [GAIN] button to set to the Manual Gain mode. 0 The a icon on the screen disappears. 0 Use the [L/M/H] switch to set the gain of the selected video amplifier. 0 The default positions of the switch are as follows. [L] : 0dB [M] : 6dB [H] : 12dB Memo : 0 You can change the gain value of each position in the menu. Increasing the sensitivity causes the screen to appear grainier. (A P99 [GAIN L, GAIN M, GAIN H] ) 55
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