blackzzz Senior Member 285 posts Likes: 2 Joined Feb 2008 Location: SE Michigan More info | Mar 24, 2010 13:34 | #1 I've got something strange happening all of a sudden. When I tried to mount my 100-400 on a 40D just now for some reason it won't lock in. I then tried it on my 50D and 20D...same thing. No problems with any other lens mounting so it's got to be something with the lens itself. This is out of the blue since I've never had any problems before with it and it hasn't been dropped ever. Visually it looks fine to me...any thoughts? I'm getting a little nervous here. Canon 7D * Canon 7D Mark II * Canon 50D * Canon 40D * Canon 20D * Canon S95 * EF-S 17-55 f/2.8 IS USM * EF 70-200 f/2.8L IS II USM * EF 100-400L f/4.5-5.6L IS II USM
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krb Cream of the Crop  8,818 posts Likes: 8 Joined Jun 2008 Location: Where southern efficiency and northern charm come together More info | Mar 24, 2010 13:36 | #2 |
Mar 24, 2010 13:54 | #3 Found the problem...user error! Canon 7D * Canon 7D Mark II * Canon 50D * Canon 40D * Canon 20D * Canon S95 * EF-S 17-55 f/2.8 IS USM * EF 70-200 f/2.8L IS II USM * EF 100-400L f/4.5-5.6L IS II USM
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alpha_1976 Goldmember  3,961 posts Likes: 1 Joined Nov 2009 Location: USA More info | Mar 24, 2010 14:05 | #4 what was the problem I know more about gear than I know about photography
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argyle Cream of the Crop  8,187 posts Likes: 24 Joined Apr 2007 Location: DFW, Texas More info | Mar 24, 2010 15:30 | #5 blackzzz wrote in post #9862636  Found the problem...user error! That's usually the case with the 100-400L (in more ways that one it seems). "Fat, drunk and stupid is no way to go through life, son". - Dean Wormer
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