The [ ! ] icon appears when the shutter button is pressed halfway.
18-Jun-2010
8200805400
Solution
The 
icon appears along with a yellow AF frame when the shutter button is pressed halfway and the subject is not in focus.
icon appears along with a yellow AF frame when the shutter button is pressed halfway and the subject is not in focus. One of the main reasons for the subject to be out of focus is that the distance between the camera and the subject may be too close.
For details on how to focus on a close subject when shooting, see the link below.