Ok I have a few questions to ask to anyone who knows. I have been taking pictures for a while, and lately I have been getting more and more serious about it. Excuse my questions if they are very elementary.
1. What is ISO mean? (ex: ISO 100) I have a Cannon EOS and have seen photographers mention ISO in their comments. I saw there was an ISO label on the switch, but I could not take pictures on that setting.
2. On my EOS, what setting should I use to take pictures with? (of planes, generally moving) I saw a "flower, mountain, and a runner" labels on there.
3. I have a 300mm lense I used most of the time. I noticed that my pictures get grainy when I shoot them using the full zoom. (Not when I take the pictures, but post-development) Any way to fix this?
Guys, thanks a lot in advance. Any help would be GREATLY appreciated.