Caveman

Thanks guys for all your helpful replies, just need these rain clouds to move out of the way;-)

Hello there, I'm planning to use my Canon eos 450d for deep sky astrophotography attached to a telescope and need to know which settings to use including most importantly the custom function setup, I have searched everywhere on the net to find this info but to no avail. Any help would be very much appreciated.  Kindest regards, Paul.