Panasonic DMC-LX7K - Manual (Page 74)

Application (Record)
Taking pictures by changing the picture effect [Creative Control] Mode
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VQT4J11
For the [Creative Control] menu setting procedures. (→64)
[Radial Defocus]
This picture effect defocuses the entire picture by retaining a
sharper focus on the main subjects than with [Soft Focus] by
operating focus when the shutter is open (exposure time) during
recording.
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Items that can be set
Brightness
Underexposure
(darker)
Overexposure
(brighter)
Degree of
defocusing
Slight defocusing Strong defocusing
●
Motion pictures cannot be recorded.
●
Use a tripod or other device since this effect slows the shutter speed.