"Filters are exposed to all sorts of extreme weather conditions when used in the landscape. They can be battered by anything from sea spray, grit and rain to snow and become grubby with fingerprints from too much handling. Not only can this have an impact on their longevity, it can also have an adverse effect on the image - degrading it in a way that can be tricky to resolve in postproduction. ClearLEE Filter Wash is specially formulated to cut through dirt. Safe to use on every filter in the LEE Filters range, it removes everything from greasy marks and fingerprints to salty residues safely and effectively. Simply spray ClearLEE on to the filter and wipe clean with a microfiber cloth or tissue and polish. ClearLEE Filter Wash - 50ml Specially formulated filter wash that's safe to use on every filter in the LEE range. 50ml aluminum can with a spray top that's ideal for popping in your camera bag when heading out on a shoot."