How do the various modes set the exposure parameters?
The [Portrait] mode tries to keep the aperture as wide as possible. The [Night Portrait] mode (without the flash) sets the aperture to f/6.5 or f/8, depending on the light level. The [Sport] mode prefers a narrower aperture than the [Normal] and [Macro] modes. The [Panning] mode tries to use a shutter speed of 1/30 second if possible. Aleksk created a nice graph showing how the various modes select the aperture and shutter speed at various lighting levels. Heres a legend: X-axis: exposure value (stops), Y-axis: aperture, the numbers are the shutter speeds. Green line (squares) – [Panning] mode. Red line (Xs) – [Night portrait] mode without flash. Purple line (full circles) – [Sport] mode. Black line (full squares) – [Normal] and [Macro] modes. Blue line (diamonds) – [Portrait] mode.
