A un américain quia un problème d'autofocus avec le 1D M k III, Canon a envoyé l'e;mail suivant. Cela peut intéresser certains d'entre vous.

"After thorough research, Canon has found that some EOS-1D Mark III cameras have an issue with the sub-mirror mechanism which is part of the autofocus optical system. This issue may cause unstable focus prediction performance with moving subjects in AI-Servo AF and continuous shooting modes particularly in higher than normal temperatures. The process for repair of the EOS-1D Mark III cameras, for those customers who are dissatisfied with the focus prediction performance, will be announced on the Canon USA Web site in late October.
If you are not currently experiencing this issue with your EOS-1D Mark III then it will not happen in the future. Cameras with this problem manifest it from the time the camera is purchased. However, we will contact you as soon as the repair program is finalized."

On est fort loin de la théorie de la mauvaise manipulation par l'acheteur.
Cordialement
Bernardp