If the image size is around 500 KB even at 7 or 8 MP; and if the resulting image looks grainy, try this to improve the quality of the picture:
Turn off the Auto
mode. Change it to manual mode and select ISO 80
or ISO 100
. If there is no improvement in the quality of the picture, try the other ISO options 200, 400, 800 or 1250. Note that larger values doesn't necessarily produce cleaner, sharper images.
| Digital Camera