Quote Originally Posted by shootme
Gary I'm with you, thanks for sharing the example, I could have been swayed to leave the ISO at 100. I often use ISO as a means to sneak more light, but then I always shoot in Raw. One point though, if your going to want noise in the shot then it's not a bad idea to leave the ISO at 100.
Yep, the only thing though is if I want the noise in a particular shot, I would rather have the high ISO noise than the noise achieved by pulling the exposure up later in software.
The noise I get at 1600 or 3200 ISO out of the 5D really has a nice fine way about it.
The noise from pulling the exposure up in LR gives more of a muddy,blotchy noise with artifacts.
I would just switch to a higher iso and close the aperture, or there are some pretty neat filters available to add realistic noise and grain later in PP.