Panasonic DMC-GH4KBODY - Manual (Page 203)

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8. Recording Motion Pictures
• Aperture value
– Set the aperture value to a higher number when you want a sharp focus background. Set the
aperture value to a lower number when you want a soft focus background.
• Shutter speed
– When you want to take a sharp picture of a fast moving subject, set with a faster shutter
speed. When you want to create a trail effect, set to a slower shutter speed.
– Manually setting a higher shutter speed may increase the noise on-screen due to the higher
sensitivity.
– When subjects are recorded in an extremely bright place or under fluorescent/LED lighting,
the color tone or brightness of the image may change, or horizontal stripes may appear on
the screen. In that case, change the Recording Mode or manually adjust the shutter speed to
1/60 or 1/100.
If you use [Synchro Scan]
(P218) , you can adjust the reduction setting in even finer
increments.
• If you set [Variable Frame Rate] (P215) , the shutter speed may change.
• When [Exposure Mode] is set to [M], [AUTO] of the ISO sensitivity will switch to [200].