I noticed this more than once. Whenever I'm in the range from 24mm to somewhere between 35mm and 50mm, the lens starts moving if I'm fixing it vertically with its front element facing the ceiling or the floor, is this a problem with my own lens or it's a general problem with this lens?
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Most not-top-of-the-line zoom lenses have this problem, as far as i know. This is a guess, but i am assuming lenses which have no external moving parts might minimize this issue...but then again, this might have to do with the fact that these kinds of lenses are usually nearer to the top of the line. To counteract it, fixing the lens on place with tape might be a quick and dirty solution (if the lens is retrofocal, which yours seems to be, and nothing moves externally while focusing). |
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A quick search shows that you're not alone with this problem for that lens. (I don't have that lens myself, so I can't comment from experience). Since it is an L-series lens, you might want to just take it to Canon for them to service it. Alternatively, if you want a DIY solution, the simplest fix might just be a thick rubber band or a piece of gaffer tape. Here's a collection of different DIY methods people have attempted for fixing the problem. |
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My 24-105 does not have creep. I just tried mine in a vertical position looking up and down. I wiggled it around to try to induce a bit of creep. None. |
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I have two of these lenses and have never experienced this. I would expect them to be stable, as L series lenses are expected to perform well. They are not the same though. One works with all my autofocus systems and the other only works on my 1DsMIII. I only bring this up to point out that not every lens is the same. |
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