usually have a filter on each of my lenses because I like photography in general and motorsport in particular, so the protection offered by a filter never hurts, apart from its benefits in improving contrasts and reflections. As always with K&F, there are 10 pieces, a silver cardboard box entirely screen printed inside a rigid PVC box that perfectly protects the product. Inside this box there is the filter, a protective cap, a fastening strap for the cap and a disposable microfiber suede. As for the filter, two things struck me: how thin the filter frame is and how well built it is to be in the "low" range of the brand. Once installed, the filter is invaluable when viewing the photos thanks to its optical quality, also as a good UV filter it suppresses certain flashes and slightly clears the fog, which is certainly appreciated. As for the construction, the metal frame with two wavy areas, in addition to threading perfectly into the lens, is very comfortable to put on and take off thanks to the knurling. As for a K&F product, I did not expect to be disappointed, but we are not looking at the manufacturer's top offering, but as always, my expectations are improving. The additional case with adjustable strap seems very comfortable to me and it is good to incorporate it, as well as a cleaning cloth for the initial placement of the filter.