Panasonic LUMIX DC-GH6 Owner's Manual page 164

Focus / Zoom – Using AF
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This can be set when using a lens with a focus ring or a focus lever.
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It cannot be set if the focusing distance range selector switch of the lens has
been used to limit the operation range.
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The setting values are reset when the lens is replaced.
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When [Focus Limiter] is working, [ ]/[ ] is displayed on the screen.
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