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p.1 #5 · p.1 #5 · 100 macro f2.8 L is usm intermittent focus on 7D | |
scalesusa wrote:
A lens that is dropped has a 90% probability of some internal damage. It will likely decenter some of the elements, and possibly crack or break the small nylon bushings that guide the focus helix.
Always send it to be checked out after dropping it, otherwise, it will finally fail just when you need it most.
I'd say 90% is rather overplaying it. It's certainly possible, but many lenses hold up remarkably well, without a hint of image damage after a drop. But it does depends, of course.
For porro prism binoculars you are sadly closer to the mark, a great many of those do not handle drops well at all!!
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