Hello!! I'm relatively new to the hobby and just recently got my first big lens. Specifically I am rocking a Olympus M.Zuiko Digital ED 100-400mm f/5-6.3 IS Lens on a OM-D E-M5 Mark III. Whilst out on a hike I noticed that there is a slight amount of rotational give between my lens and my body. By that I mean it feels like the lens is not fully on the body. It is not a large amount by any means and so far I have not noticed any issues in taking photos with it but I was not sure if it was something I should worry about. I assume that having such a large lens on a tiny body could be the culprit but like I said, I'm still kinda new haha. Thank you guys so much for your help!!!