Canon 7D with 100-400mm IS lens

dave vichich wrote:

I'm on my 2nd 7D, my results with this lens is mixed. More times than not, my photos just lack sharpness. So now everyone can tell me that I don't know how to use this camera and so on. I hope your results will be better than mine.

BTW, this is the only lens that I have had this trouble with on this camera. At first, I thought maybe the problem was with the lens, so I tried it on my T3i and my 5DMKII, it works like a champ on those cameras.

I have used a Canon 300 F2.8is with and without tc's and a Sigma 120-300 f2.8os and have gotten great results using them.