The photographer got this shot using a normal shutter speed and an aperture setting of around f5 to get the focus on the flowers themselves, leaving the background slightly blurred to accentuate the bright yellow pansies.
The photographer got this shot with a very fast shutter speed of 1000 or more. The foreground is in focus while the background is blurred, meaning the photographer probably used an aperture setting of around f5 to get the effect.
The photographer used a super fast shutter speed and an aperture setting of around f2 or f2.8 because it was shot indoors under what is most likely tungsten light. The glass itself is not in extreme focus so this is likely.
