in regards to photography of all kinds, be it motion picture, or digital, something about apertures in regards to exposure has always bugged me... you see, the aperture doesn't magically disappear when exposing whatever you may be exposing. It has to open from the center to the outer limit, and then close fby going from the outer limit to the center again. Now, wouldn't one then expect the exposure of ANY photography, film, slide, censor, to be bright in the center and gradually lose exposure when reaching the outer edges? I understand that it is all done PSYCHO fast... but in an age where it isn't uncommon to see 1/8000 of a second exposures, I'm left to wonder how fast can it possibly be, and how come I don't see any difference really... Am I not looking hard enough? I know cameras don't open exactly from center to the outer edge, the paerture tends to be built of 3 or 4 piece the retract on their own, and then go back to form a nice black wall... but still, they do have to retract, and that would mean the center gets more exposure than the outer edges.... I'm kinda lookin at misha and wolfsnap for answers here, but nay input would be cool.