I recommmend two things :
First always get the Majority of the storm using Auto Settings. this is critical as it will not fail you.
Once you feel like you got a good part of it, you can than Dial in the ISO and play with the F Stop.
One...
FletcherAero, glad you just clarified this.
DaveH70, you should have a Trust certificate since you do not have a 107. Check with the FAA site for information if you do not have one. When getting this you will also learn where you can fly as a...