Maybe someone with the xpro-35mm combo can confirm this. When I point my xpro down at a fairly steep angle and press the shutter button halfway to engage focus, the lens will more often than not make a very audible vibrating sound as it focuses. If I level the camera to a less steep angle, the sound stops. It sounds as though something is loose but it seems to be working okay. The 18 and 60 don't do this. I've also tried different apertures but the noise persists. Just was wondering if this is common or if it's something I should contact Fuji about before the warranty runs out. Thanks for any help! Happy 4th!!!!!