I'm planning on purchasing a polarizer from URTH (https://urth.co/products/cpl-polarizing-filter-plus) but I am unsure of whether or not I will be able to set the filter rotation correctly on my M3.
I had contacted URTH themselves and they said to set the orientation correctly by looking through the filter before attaching to the lens, I though this sounded impractical. As the M3 does not have any way of seeing through the taking lens, how should I use a polarizer and/or other filters that rely on achieving the correct orientation to produce the desired affect.