The depth-of-field range can be determined using the depth-of-field scale for the lens in use. First, select the
desired aperture, then look at the corresponding figures on the depth-of-field scale on both sides of the central
index dot. This is the extent of the depth-of-field that will be obtained with the aperture you are using. For
example, if the camera is focused at 15ft (5m) at an aperture of f/11, the range of sharp focus will be
approximately from 10ft (3m) to Soft (10m).
Infrared Photography
The red dot (or red line) to the right of the central index dot of the lens is the infrared mark. This mark is
provided because focusing characteristics of the lens differ from ordinary films when using black and white
infrared film. Compensation is required as explained below.
1. After focusing the lens in the normal manner, read the distance indicated by the central index dot. Then,
move the distance indicated so that it aligns with the infrared mark.
2. Attach a red filter over the lens, and set the exposure manually as indicated by the film instructions for
infrared photography.
· Focusing compensation is required only for black and white infrared films, not for color. Read the film
instructions carefully for proper use of the filter.
Summary of Contents for ZE-X
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