Hello, I just received my Olympus 17mm lens + VF-1 which I bought from ebay. So I was very excited to try out the lens. However, the problem with this lens is when I attach the lens to the camera, I can rotate the lens half way very smoothly and then I will need to turn really hard to have the red dot in the middle and hear it click. Does this sounds normal? Also when I pan/move my camera to left/right to take a picture, sometimes there will be some "tick tick tick" sound without pressing any button, is this normal as well? With my 14-42mm kit lens, I have no problem attaching the lens to the camera, it rotates in the direction very smoothly. Thanks.