Panasonic LUMIX DMC-G7 Owner's Manual For Advanced Features page 380

13. Others
[Special Mic.]
[Mic Level Limiter]
[Wind Noise Canceller]
[Wind Cut]
[Lens Noise Cut]
Sets the sound recording method when a stereo
shotgun microphone (optional) is connected.
Adjusts the sound input level automatically.
This will reduce the wind noise coming into the built-in
microphone while maintaining sound quality.
Effectively reduces the wind noise when recording sound
with an external microphone.
You can reduce the zoom sound of an interchangeable
lens compatible with power zoom that is produced during
motion picture recording.
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