Panasonic Lumix DMC-G7 body - Manual (Page 202)

6. Shutter and Drive Settings
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• The flash output may vary slightly when the [ ] is selected.
Not available in these cases:
• It cannot be set to [ ] in the following cases.
– When White Balance Bracket is set
– When recording with the shutter speed set to [B] (Bulb)
– When [Simultaneous record w/o filter] of [Filter Settings] is set to [ON]
– When using [Multi Exp.]
• Self-timer is disabled in the following cases.
– When recording motion pictures
• We recommend using a tripod when recording with the self-timer.