Just getting my first Matte Box to go with the EX1 when it comes and I'm wondering if it is the right thing to put a thin 77mm screw-on UV protection filter on the camera before attaching the matte box. The EX1 will take a filter under the matte box if it is a thin one. I know the B+W works but B&H is out of stock else I would have got it anyway with the camera.