i've been seeing that many mention pictures taken at eg. f1.8 is quite soft, so therefore many photographers dun utilise that and use a smaller aperture, like f2.8.
sorry but someone enlighten me on this? has this got to do with the lens? or is it just common among apertures? if so, which aperture is the sharpest? if the lens, so we'd have to play around and figure out the optimum aperture?
how come at f1.8 is softer than at f2.8? ok maybe this is more technical? dispersion of light or something like that?