Minolta XG-1 - Infrared Index

5m (about 16 ft .) and the aperture is f/8, the
appropriate graduations to left and right of the
index on the depth-of-field scale indicate ac-
ceptable sharpness from about 3.1 m to 12.4m
(approx . 10 to 33 ft.).
Infrared index
For proper focus when making pictures with
infrared radiation, first focus your subject with
visible light as described above, then attach a
red
filter and turn the focusing ring to the right
to align the point of proper focus on the
distance scale with the index designated with
small red "R" in the depth-of-field scale. When
making color pictures, follow the manufac-
turer's recommendations to set focus.
37