From the Minolta 16 MG Owners Manual:
The f/2.8 20mm Rokkor lens provides extreme depth of field.
You are in sharp focus from 6 feet to 56 feet at f/5.6
Depth of field scale
Lens opening -- Distance in feet
Without auxilliary lens:
-
f2.8 -- 7.75 ft. - 18.25 ft.
-
f4 -- 7 ft. - 25.25 ft.
-
f5.6 -- 6 ft. - 56 ft.
-
f8 -- 5.1 ft. - infinity
-
f11 -- 4.2 ft. - infinity
-
f16 -- 3.4 ft. - infinity
With built-in close-up lens:
-
f2.8 -- 3.4 ft. - 4.5 ft.
-
f4 -- 3.25 ft. - 4.75 ft.
-
f5.6 -- 3.1 ft. - 5.4 ft.
-
f8 -- 3.0 ft. - 6.5 ft.
-
f11 -- 2.5 ft. - 9.1 ft.
-
f16 -- 2.2 ft. - 10 ft.
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