Thankyou so much gentlemen. I kinda thought it might be me missing something obvious! It joins a D700 workhorse and a D7000, so I'll have to decide if I want to switch the D800 to match with the other exposure scales. One more shoot today, and I'll use the D700 for that, then spend tomorrow getting used to the D800. Always been a fault of mine, that I never read the instruction books, just grab the camera and shoot.