[PRODIG] Digital 'film' speed

[Janus van Helfteren]

Hello list , here is an idle question .

When one adjusts 'iso' setting on , say, an S2 , what actually happens.

ie . with film bigger grain accepts light more quickly (I think) , hence fast film being grainy and slow film having finer grain.

So how does that work on a ccd ? in simple english ? Cos we have noticed 'grainier' shots at higher iso settings , which doesnt make sense to me.

yours , confused

Janus



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