u dun hav to set ur aperture to the max at f/33.
the normal sweet spot of different lens are f/8 or f/11.
hmmm... waiting for 3-4 secs for preview to come out...
is it after u press the shutter button, u hav to wait for 3-4secs
for the shutter to snap? as in a SNAP sound?
or after u press it, already snap and u hav to wait for 3-4secs for
the preview?
got different...
haha.
but my guess is that bcos u set ur aperture to f/33, due to lesser
light going into the len, it will need longer exposure, thus cos
you hav to wait for 3-4secs for your shutter to snap to take the
photos.
due to the long exposure and i guess u shot it hand held, thus with
camera shake also, causing your photo to hav the blury and smoky
effect.