Is I IS or is I ain't?
I have a Canon 100-400 L IS lens. The instructions say to turn the Image Stabilisation off if the camera is on a tripod. Can anyone tell me if leaving the IS on when on a tripod will actually damage the lens? Also what about if you are hand holding with a very stable footing or say resting on a wall, does the IS have to be turned off then?
TIA
Robin
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