Protective filter for ultrawide lens? Purchased a used Sigma 10 -18 recently. I’m wanting to put on a filter to protect the lens from my general clumsiness. I read that CPL’s are not great to use on such ultrawide lenses, leaving UV as the option. Any recommendations on which UV for 67 might be the one to pick? Is there a special kind for ultrawide lenses? submitted by /u/d…

No 80mm UV Protective Filter Size Odd question, but I’m looking to find an 80mm UV filter for my new Leupold Spotting Scope. But 80mm doesn’t seem to be a standard size for UV Filters, nor any filters for that mattter. Does anyone know of any UV Filter manufacturers that build an 80mm? Thanks in adavance. submitted by /u/DuckFin90