Panasonic Lumix DMC-GF6 Owner's Manual page 160

Recording
About the focus distance reference mark
The focus distance reference mark is a mark used to measure the focus distance.
Use this when taking pictures with Manual Focus or taking close-up pictures.
A Focus distance reference mark
B Focus distance reference line
C When the interchangeable lens (H-PS14042) is used
0.2 m (0.66 feet) (Wide to focal length 20 mm)
0.3 m (0.98 feet) (focal length 21 mm to Tele)
D When the interchangeable lens (H-FS1442A) is used
0.2 m (0.66 feet) (Wide to focal length 20 mm)
0.3 m (0.98 feet) (focal length 21 mm to Tele)
E When the interchangeable lens (H-FS45150) is used
0.9 m (3.0 feet)
Focus range
0.2 m (0.66 feet)
0.3 m (0.98 feet)
0.2 m (0.66 feet)
0.3 m (0.98 feet)
0.9 m (3.0 feet)
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