Hey guys, i've got this question on using ISO to affect exposure.
I understand that upping the ISO rating say from 100 to 400 would mean that the film is 4 times more sensitive to light.
so in short, this allows me to set a shutter speed 2 stops faster say 1/250 to 1/1000 at a give F-stop value right?
so flowing with this logic, if i up the rating of film from 100 to 1600, would it mean that the film is 16 times more sensitive to light and therefore would allow me to set a shutter speed 8 times faster at the same given F-stop value to give me the same exposure if i had originally stayed with the film rating of ISO 100?
would appreciate any confirmation on this...thanks guys!
I understand that upping the ISO rating say from 100 to 400 would mean that the film is 4 times more sensitive to light.
so in short, this allows me to set a shutter speed 2 stops faster say 1/250 to 1/1000 at a give F-stop value right?
so flowing with this logic, if i up the rating of film from 100 to 1600, would it mean that the film is 16 times more sensitive to light and therefore would allow me to set a shutter speed 8 times faster at the same given F-stop value to give me the same exposure if i had originally stayed with the film rating of ISO 100?
would appreciate any confirmation on this...thanks guys!