The results from this filter are absolutely beautiful. It is well made with a metal ring with good threading and good glass. It threaded easily onto my lenses, and I used it with a couple different lenses (some I had to use step rings with). You do get a case with the filter, which is the one thing that I’m not completely sold on. The case has a good look, but I’m concerned that the filter kind of moves around in the case. Other cases I have are more secure, so I switched it to one of those. The filter seems very durable. I didn’t notice any vignetting, image degradation, or color casting. The effect is gorgeous. Highlights have a nice glow and slight softening. The shadows are richer. I absolutely love the effect. I tested identical shots with and without the filter and it does require a slight adjustment to allow in more light to keep the same exposure level. I’m primarily using the filter with my Canon DSLR cameras and I’ve used it for mainly still shots but also a couple videos. One wish list item would be a magnetic attachment rather than threaded, but not a huge issue. The results are the main factor and overall it is very impressive.