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Message: <blockquote data-quote="NoSpringChicken" data-source="post: 2081438" data-attributes="member: 53267">I was getting rather frustrated yesterday, trying to photograph some Bullfinches. I was using the 50-200 with the EC-14 and the birds were high up in a tree surrounded by twigs. The light was reasonable, although the weather was grey with no sunshine. I was having great difficulty getting the lens to focus, despite using the single autofocus point and trying to lock onto the bird's head. The lens was jumping about trying to lock focus and every so often it would cycle through the entire focusing range. I suppose I should have used manual focusing but the birds were very mobile and my eyesight is not what it was, so getting sharp focus manually is not easy for me.Another problem which I had was that, a couple of times, during the day, the focusing effectively 'died' and wouldn't respond at all. I could reset it by switching the camera off and on again, so I think it was the software getting confused rather than a mechanical problem. I don't know if I should be worried by this of if it just 'one of those things'.Ron</blockquote>