No Brucie, you did a better job than I could.

I realize my explanation of the curved line thing leaves lots to be desired. If yer gonna shoot infrared, ask at the camera store. Someone there should help you

is honest and helpful.

I cheat. Tripod and f 32.
I know it will be in focus then. The only camera I have with an IR curve on it is a Medium format TLR, from the mid 60's. The modern ones have nothing of the sort on them.

Bunnhabhain