This is a great protective filter for a pricey lens. I recently ordered a set of diffusion filters from K&F Concept for one of my lenses and I was very pleased with the quality of the glass as well as the workmanship. I didn't hesitate to order this UV filter when it became available. I ordered the 55 mm version for a standard Nikkor lens that came as part of a DSLR kit. Years ago, I used UV filters on the lenses I used on my film cameras, but I am just now starting to learn my way around digital cameras. I imagine this might be helpful in some outdoor shots, but I was primarily interested in just protecting my lens. This filter is thin, light and attaches to my lens very easily. The optical quality of the Japanese-made AGC glass is very high. My images are sharp and I cannot see any aberrations in the glass. I appreciate that this filter is designed to be shock-proof, water-resistant and especially scratch-resistant as it is surprisingly easy to damage a lens or get it wet or dirty (and they aren't all that easy to clean). It is nice to keep dust off of my lens, and not to have to worry so much about something happening to it so I can just think about taking pictures. I have several other lenses in various sizes that are also in need of protective filters, and I will certainly be looking for this brand. I also like the sturdy storage case this lens arrived in. The current price of $32.99 is a very reasonable cost and such a worthwhile purchase so I know my expensive lenses are protected.