ermz. u get more bokeh with 2.8..
means say using 2.8, if u focus at 5cm away, 1mm off the focal point would be out of focus.
if u focus at 10 cm away, there's greater "tolerance".
if u shoot at something 30m away, it's as good as infinity, so no big diff on sharpness if u use 2.8 or 8.0 for our fixed lens cam.
only thing is the amt of light entering the camera -
F8.0 less light, so end up whole picture darker, the lighted parts brighter.
F2.8 more light, whole photo brighter with a bit more details sometimes..
it really depends on the mood of the photo that you wan to take.
next time try try lar.. i also go on PLUG then i learn how diff aperture affects my photos.
hmmmmm heh heh what happened to PLUG?