Olympus OM-2 - Manual (Page 28)

INFRARED PHOTOGRAPHY
CAMERA BACK REPLACEMENT
The OLYMPUS OM System Lenses are provided
with an infrared index mark engraved in red on
the depth of field scale.
When shooting with infrared film, focus normally
on your subject without the red filter on and read
the subject distance on the distance scales. Then,
turn the focusing ring to the right until the dis-
tance reading is opposite the infrared index mark.
Your lens will then be in focus for average in-
frared photography. Shoot with the red filter on.
In the above picture, the red index is set at infinity.
CAUTION: Due to special light gathering require-
ments of infrared films, it is recommended that
you follow the film manufacturer's recommenda-
tions regarding exposure.
The camera back of the OM-2 is fully interchanbe-
able with the Recordata Back 2, 3 and 250 Film
Back 1. To remove the camera back, push down
on the release pin as shown. Do not remove the
back unless necessary.
The Recordata Back 2, 3 registers data such as
date, number, alphabetical code, etc. directly on
the picture.
The 250 Film Back 1 is designed for winder or
motor drive shooting; it accepts a bulk loaded
magazine of 250 frames.
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