Olympus Accura Zoom 105R Instructions Manual page 50

50
The autofocus didn't work correctly. There are some
subject that are difficult for the autofocus to lock on.
These include: glossy or reflective surfaces, black
objects, subjects behind glass or wire mesh, flames
and smoke, excessively bright light within the picture
area.
First focus on an object at the same distance as the
desired subject. Then aim at the desired subject and
release the shutter release button. (p. 36)
The picture is too dark.
The flash was blocked, (e.g. by a finger).
Hold the camera correctly, keeping your fingers
clear of the flash. (p. 15)
The subject was out of the working range of the flash.
Shoot within the flash working range. (p. 31)
The flash mode was set to OFF.
Check the flash mode before shooting. (p. 29)