Cheers David, as I said above, I'm happy to have it wide open as that's where it usually is when shooting wildlife this time of year....
And that's handy to know too. I still have all 3 of my digital EOS bodies (7D1, 7D2 & 6D) plus an old 620 film body (that I doubt will ever go), so I can preset if required.
I'm just arranging to tale all my Canon gear into
LCE to look at a P/X for some more Fuji goodness. 100-400, 10-24, 1.4 & 2 x converters, and maybe another T2 (graphite). Since investing in the Fuji system I have given up on carrying all that weight around....