I've noticed that I feel a slight vibration when I'm walking with my CZ 24-70 attached to the camera. I tried shaking the camera and I can see the lens move at the barrel without the lens being extended. I can hear as well as see the lens move. I picked up my CZ 85 and shook it and noticed a slight sound and a very small amount of movement.
Is the common for the CZ Lenses or do I have something that I should be concerned about? I find it hard to believe that both of my CZ lenses could be defective,but I wouldn't think that that should have any movement in them.