I know that to get a great exposure you need to match the shutter speed to the aperture.....these facts are self evident. But does exposing the sensor to a longer (or shorter) period of time actually affect the IQ? I always wondered since some of my shots taken with different exposure times seem to look better than others even though the focus, exposure, ISO and lighting are exactly the same. I understand that different apertures yield different results but I am thinking more along the lines of color saturation and overall curb appeal of the final image. I notice the difference mostly when shooting in the studio under controlled lighting. Anybody else notice this or am I the only one? Thanks for any input!