If Correct Focus Cannot Be Obtained; How To Use Focus Lock; (If The Subject Is Not Positioned In The Center Of The Frame) - Olympus EVOLT E-500 Advanced Manual

If correct focus cannot be obtained

The camera's auto-focus may not able to focus on the subject in the cases
shown below (e.g. when the subject is not in the center of the frame, when the
subject has lower contrast than its surroundings, etc.). If this happens, the
easiest solution is to use focus lock.
Subjects that are difficult to focus on
Subject with low contrast
The AF mark stays lit, but the subject cannot be brought into focus.
Subjects at different
distances

How to use focus lock

(if the subject is not positioned in the center of the frame)

1
Position the AF frame on the
subject you want to focus on.
AF frame
The AF confirmation mark blinks.
The subject cannot be brought into focus.
Excessively bright light
in center of frame
Fast-moving subject
Subject with repeated
patterns
Subject not inside AF frame
Card access lamp
2
Shutter button
27