Panasonic DMC-GF1C Operating Instructions Manual page 62

Advanced (Recording pictures)
∫ Shutter speed for each flash setting
Flash setting
‡
‰
¢1 This becomes 60 seconds in Shutter-Priority AE mode
¢2 This becomes 60 seconds in Shutter-Priority AE mode and B (Bulb) in the Manual Exposure
Mode.
¢3 This becomes B (Bulb) in the Manual Exposure Mode.
• When the flash is activated, the shutter speed cannot be set to faster than 1/160th of a second.
• In Intelligent Auto Mode, shutter speed changes depending on the identified scene.
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Shutter speed (Sec.)
¢1
1/30 to 1/4000th
¢2
1/30 to 1/160th
Flash setting Shutter speed (Sec.)
1 to 1/4000th
60
Œ
¢3
to 1/4000th