Hi guys,
I'm new to DSLR cameras and I've just bought myself a Canon 400d (with lens included).
I have a quick question (or two) regarding the operation of my new camera:
1. Can lenses be swapped with the camera switched on, what is recommended? I ask because I didn't attach my lens properly and whilst experimenting taking shots, the lens detached itself with the camera on.
2. Can the Compact Flash card be removed with the camera switched on?
Any information would be greatly appreciated.
Thanks,
Jen
Now time to learn how to use it properly 
