ISO is a measure of the camera's sensitivity to light. in the
daytime, using a lower ISO will give you less grainy photos.
if you want to shoot a Euro IV K230UB and get the full EDS, your
shutter speed needs to be 1/60 or slower. if not you will get a
blanked out EDS. which means you need to do a really good panning
shot or the bus has to be stationary. but at such a low shutter
speed the camera will be very sensitive towards hand shake, so your
hands have to be steady too.
just to add on.
F value is also dependent when taking photographs of a slower
shutter speed. the higher the F value, the clearer the photo is,
but the longer shutter time u will need to compensate for a picture
which is not underexposed.
most compact cam users will experience problems in terms of
taking shots of K230s under strong sunlight conditions since the F
ratio is at F/8 max and trying to get a shot of it at 1/50s, F/8
will still end up with an overexposed picture.
