Videomaker – Learn video production and editing, camera reviews › Forums › General › Video and Film Discussion › Filter/Lens Protector › one other tip: go with Tif
one other tip:
go with Tiffin, Lee, Cokin, square/rectangle filters. Get a filter holder set and step up/down rings for use with all your cameras (slr, compact, video). go with the largest size that will cover your biggest lens. B+W and Hoya make sensational polarizers if you need a slimline screw in filter, (again buy the biggest and step down rings for other cameras).
There is a difference between Circular (Cir, or CR) polarisers and linear polarisers. Linear can have adverse effects on some cameras metering/focus systems, Circular was desighned to fix that.