Quote Originally Posted by Samuel View Post

Don't bother to shoot over 400 ISO, it's not even worth it for most cases.
Err, sometimes it's mandatory. Like lets say your shooting a basketball game in a gym. Well chances are lighting isn't good,and the people are moving fast, and your regular 400 ISO might not cover it. This is when using a higher iso can come in handy.

It's definitely a pain with digital cameras because the grain is sooo much more visible, but if it's necessary then you gotta do it.