bvanant
Contributor
The problem is the OP doesn't have many controls on his camera, yet it has +/- 0.3 EV controls. This is most easily done (by the camera engineers) by controlling the exposure time. On my wife's P&S (Canon) if you look at the exposures it is always done by changing the shutter speed at least in the +/- 1 EV limits.
Bill
Bill