The film works well, I think. I've been using it on the stock lens. I'm waiting for my borofloat lens with the film. I prefer the wider, softer hotspot, especially for up close use like reading. The tiny hotspot is a little annoying for that. I wish I could keep the spill the same, though. With the film it's fuzzier. Still there though. What I would really like is to be able to have the film but somehow unhinge it it when I need more throw. But 99% of my needs are filled with the film.