Originally Posted by
arthurking83
Or alternatively, if you have any sensor cleaning fluid such as eclipse, it also works.
(apparently)It's 100%, water free ethanol, so works similarly to any other contact cleaning fluids.
BTW: does this happen only with the 70-200 lens. if so, which brand/model type is it.
If it does happen only with this particular lens, does the lens-to-camera fit have any amount of backlash in it. Not all do, and having some can be normal.
if it doesn't have any lash, where you can't feel any slack being taken up if you twist the lens whilst mounted to the camera then there isn't much else you can do with this test.
But if there is a very small amount of looseness between lens/camera .. if the problem happens again, can you eliminate the error if you play with this small amount of slack?
The slack I'm referring too is felt when using the same motion on the lens as you would in mounting/removing the lens but without pressing the release pin ... not a bending motion(as in trying to snap the lens off the camera!!).