If the item being observered using an E90 is too dark to enable automatic focus the devices LED flsh is activated. The application apears to successful focus, however once the focus is complete the image shown is almost total black. If the camera is pointed at, say, a PC screen an image canvbe seen. This suggests that the exposure on the image is set at a value suitable for viewing with the LED on - but not off (which is is after the focusing has been done).