If you own a Panasonic Leica DG Summilux 25mm f/1.4 ASPH and use it on an Olympus micro 4/3 camera, then you are surely aware of the terrible noise the lens makes when you go back and forth between very bright and very dark subjects. Fortunately this so called “rattlesnake noise” issue can be solved quite easily with a fast dive to the camera menu. Check out the following video to see what you have to do.