Does anyone know of good sources to get a polarizer filer for the C23? There are several old posts here that are no longer valid and was looking for current info on the topic. I have to try B&H they may have something.
You were right. I did check the accessory box that has other stuff in it and it does have a 40.5mm adapter ring.
My H+ already came with a 39mm cover on the C23. It appears that this is just a basic UV filter and will help to protect the actual lens of the C23. I understand that to use the adapter ring I have to remove the UV filter.