The slide says that doubling ISO is equal to 2* exposure t, when doubling t will lead to reduced grainy effect. However in real life often times increasing ISO will add more specular spots to the picture, isn't this kind of contradictive?
The slide says that doubling ISO is equal to 2* exposure t, when doubling t will lead to reduced grainy effect. However in real life often times increasing ISO will add more specular spots to the picture, isn't this kind of contradictive?