I am considering this camera and wondered if anybody has one yet? If so, what lenses are you using?
Just got ours yesterday evening and been trying them out today.
So far we've mostly been using a Canon 75-300mm IS zoom and a Canon 400L, but we've also tested the 10Ds out on our Canon 28-105mm zoom, Sigma 28-200mm and a Sigma 75-300mm zoom which all seem to work OK, although the Sigma 28-200 wouldn't work with an EOS 1V.
We've also got a Sigma 175-500mm zoom which won't work at all with the 10D.
Have 10D about a week. Using 100/400L IS telephoto. also 1.4 extender. works great.