I have tried both and prefer the Transitions. Initially the PhotoFusion seemed to change back faster when I would come back indoors but I noticed that they didn't get nearly as dark outside, especially on hotter days. I found I squinted a lot when wearing the PhotoFusion lenses which defeated the purpose of having a lens that darkens. Plus, the grey lenses aren't a nice grey -- they're a funny blue-ish purple color.



I've gone back to having Transitions lenses with my latest pair. They are much darker outside and I prefer the color.