Apologies if this question has been asked before (I did do a search but to no avail) but what is the difference between the "F1" and the "F2" frame rate switches?

My cam is PAL by the way,

Ron

I think I can answer my own question: "No difference in PAL land, there to accommodate 30f and 24f in NTSC land"

Ron

You've answered your question correctly. If you do the service centre software upgrade that enables the XLH1 to switch between PAL and NTSC modes the F1 & F2 becomes 30 and 24 frames respectively...

It's just a pity that the upgrade needs to be done at a Canon Certified service centre with a price tag of 400 Euros... a little excessive in my opinion for something that should have been a standard feature on the camera to begin with.

Its a pity that there's not a software upgrade version floating around the net that can be used to do the upgrade at home...