Panasonic LUMIX DMC-GM1 Operating Instructions For Advanced Features page 109

4. Recording Modes
[Dynamic Monochrome]
[Rough Monochrome]
[Silky Monochrome]
This effect gives a higher contrast to create an impressive black
and white picture.
Items that can be set
Contrast
This effect creates a black and white picture with granular noise.
Items that can be set
Grittiness
•
Display of the recording screen will be delayed more than usual and
the screen will look as if frames are dropping.
This effect blurs the overall image to add a soft feel to a black and
white picture.
Items that can be set
Extent of defocus
•
Display of the recording screen will be delayed more than usual and
the screen will look as if frames are dropping.
Low contrast
Less gritty
Weak defocus
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High contrast
Grittier
Strong defocus