Panasonic Lumix DMC-FZ200 User Manual page 86

Once the switch is set to this position the camera will allow you to set the
focus distance by rotating the back control dial, moving it to the left
moves the focus distance closer to the subject and to the right farther
away.
The MF icon on the LCD screen at this point will be highlighted in yellow
to indicate that the back control dial will change the focus.
Rotate to adjust
focus
The Manual Focus Icon
As you begin to adjust the focus position the image on the LCD will show
the focus scale and, if you have MF assist turned on in the set up menu,
you will get a magnified view of the current area indicated by the white
open rectangle.
MF Assist in Setup menu
85