Panasonic Lumix DMC-GH2K Operating Instructions Manual page 196

Recording
• About [B] (Bulb)
If you set the shutter speed to [B], the shutter stays open while the shutter button is
pressed fully (up to about 120 seconds).
The shutter closes if you release the shutter button.
Use this when you want to keep the shutter open for a long time to take pictures of
fireworks, a night scene etc.
• We recommend using a tripod or the remote shutter (DMW-RSL1 ; optional) when you take
pictures with the shutter speed set to [B]. Refer to P171 for information about the remote
shutter.
• If you set the shutter speed to [B], [B] is displayed on the screen.
• When you take pictures with the shutter speed set to [B], use a sufficiently charged battery.
(P23)
• When you take pictures with the shutter speed set to [B], noise may become visible. To avoid
picture noise, we recommend setting [LONG SHTR NR] in the [REC] Mode menu to [ON]
before taking pictures. (P123)
• The Manual Exposure Assistance feature is disabled.
• It can only be used with Manual Exposure Mode.
• Constant preview
In Manual Exposure Mode, when [CONSTANT PREVIEW] in the [CUSTOM] menu is [ON],
you will be able to confirm the effects of aperture and shutter speed on the screen. (P95).
• Close the flash.
• It can only be used with Manual Exposure Mode.
• It will be a normal motion picture recording when recording a motion picture.
• It is possible to change the switching method of aperture and shutter speed settings with the
[EXPO. SETTINGS] (P132) in the [CUSTOM] menu.
• In the Quick Menu (P56) while in touch operation, setting of the aperture value or shutter speed
can be set by touching the aperture value or shutter speed, and then touching the exposure
meter bar.
• The brightness of the LCD monitoriViewfinder and the recorded pictures may differ. Check the
pictures on the playback screen.
• If the exposure is not adequate, the aperture value and the shutter speed turn red and blink
when the shutter button is pressed halfway.
• In Manual Exposure Mode [_-A], [ _ ], [_,S] and [ _S@ ] are disabled.
• The [SENSITIVITY] is automatically set to [ISO160] when you switch the Recording Mode to
Manual exposure while the [SENSITIVITY] is set to [AUTO] or [DIS0] (intelligent).
• If you press the shutter button fully when the shutter speed is slow, the shutter speed on the
screen counts down.
• When you use a lens with an aperture ring, the aperture ring setting takes priority.
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