If the camera screen is dark, increase the gain to brighten the screen.
Switch to manual mode with the <AUTO/MANUAL> switch. (Shooting)
Switch gain with the <GAIN> switch.
<L>: Normally set to this position. (Factory setting is 0 dB)
<M>: Increases the gain of the camera image amp. (Factory setting is 6 dB)
<H>: Increases the gain of the camera image amp. (Factory setting is 12 dB)
The gain values for <L>, <M>, and <H> can be changed in the [CAMERA] menu → [SW MODE] → [LOW GAIN], [MID GAIN], and [HIGH GAIN]. ([SW MODE])
When in auto mode, selecting the [CAMERA] menu → [AUTO SW] → [AGC] → [ON] will set the camera to auto gain regardless of the position of the <GAIN> switch. ([AGC])