Mamiya DM System, User Manual

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Chapter 1 - Basic info
53
Chapter 5 - Focusing the camera
when auto focus fails
The Auto Focus function requires contrast on the subject. Auto Focusing may fail to achieve
accurate focus with certain subjects described below. In such cases, either switch to the manual
focus mode and focus manually, or bring into focus an object at the same distance as the object
you want to photograph, lock the focus using the focus lock mechanism, then take the picture.

Low-contrast subject (blue skies,
white walls and other objects)

Subjects with continuous repeated
patterns (building exteriors, blinds, etc.)

Extremely backlit reflective subjects
(car bodies, water surfaces, etc.)

When the subject is far smaller than the focus frame

Two or more objects overlapping at
different distances within the focus
frame (animals in cages, etc.)