I just received this product conforms to the description, for my Canon Eos 650 d, has the more I set out to assess the results, it is too early to tell, a flat yet, This document is not in French, yet it would be very useful to me for an optimum use, I therefore appeal to Amazon to solve this problem, and I do not fail to report if they give me satisfaction for it! so I expect Amazon to the rest of this message! thank you in advance! I would not fail to make comments afterwards.