have the part bought in late 2013 and it has brought a very good performance for the price of the EOS M! In March 2014 I had the wide-angle then with a 3-week vacation (for which I had also actually bought) and the Objekltiv has always shown to me after the 1st week when donned a mistake. "You turn the camera off and remove the battery" However, it has only occasionally brought something, the whole thing went all over again! It came so far that when you connect the lens and stripped Teter camera, the lens has focused until the battery was empty! Was annoying on holiday but can happen! Have the lens transmitted by return on Amazon to Canon and it came after 14 days back by saying it was no fault could be detected! So lens briefly tested and made some pictures and it was! One week later, on a short trip to Vienna it was again from the beginning and a good piece on strike again! Now it was annoying! Amazon has offered me the Ojektiv to send back for repair to Canon to send a replacement or to take the thing back. Have decided to return! Back to Canon makes no sense, "because it's all right" Kudos to Amazon for easy withdrawal and refund. 5 Stars !! Get it now try it in the direction of Fuji or Olympus, Canon has since probably still some way to go! PS I had the opportunity to screw the lens with a friend shortly before returning to your EOS M! There was the same mistake !!
