ok, now i understand that the CP will cause 1 or 2 stop down. So, to shoot a pic fast, UV is better. and since the CP is more expensive than UV, it's better to attach UV to protect the lence. Thnks
ok, now i understand that the CP will cause 1 or 2 stop down. So, to shoot a pic fast, UV is better. and since the CP is more expensive than UV, it's better to attach UV to protect the lence. Thnks