Yesterday my EM-1/12-40 Pro lens combo got wet for the first time. Not soaked, but I was outside in a dripping forest for a few hours on a windy, misty, 40 deg day. I shielded the camera when I could, but it was hit briefly several times with light rain, and I was zooming the lens in and out a lot. When I got home it I dried everything off as best I could, zoomed the lens all the way out, and left it on my desk to dry. This morning all appears fine except now when I zoom the lens in and out I hear and feel a very subtle dry scraping sound that wasn’t there before. Noisy is a bit of an exaggeration and it doesn’t sound like there is dirt or grit inside the movement or anything like that. However, before when I zoomed the lens in and out it was absolutely quiet and felt silky smooth, now it feels and sounds like two clean smooth dry (non-lubricated) surfaces sliding fairly quietly across each other. Should I be concerned that some sort of lubricant has washed away? That’s what it sounds and feels like. Is there any way I can restore it to its pre-rain state of silky-smooth silent movement? Has anyone else experienced this? Has anyone zoomed their 12-40 in and out a lot while wet and NOT noticed this afterwards? Should I send this back to Olympus for warranty service?