I sold the 3rd 1Ds-Mk3 at a significant loss. Canon told me and other owners with AF problems on numerous occasions that the 1Ds-Mk3 had no AF problems, and the AF problems were all isolated to the 1D-Mk3. However, here is a service announcement from Canon that shows both the 1Ds-Mk3 and 1D-Mk3 still had AF problems after 15 months (1Ds) and 21 The Canon EF 24-70mm f/2.8L II is a beautiful lens, I would love to own it if it weren't $2000. I shoot indoor/outdoor fashion photography and am looking for an affordable go-to lens for my FF 1DS mark iii. My budget is about $700. Visit our Comparometer(tm) to compare images from the Canon EOS-1Ds Mark III with those from other cameras you may be considering. The proof is in the pictures, so let your own eyes decide which F1qrBSr.