I took it with a Neewer filter IR720 nm and Canon eos 60D.
I didn't find hot spots and the filter is pretty good (it's way more cheaper than the Hoya). Vignetting is a bit annoying if you don't like it, but it's the only problem I found with this Neewer.
I like it! I wish I knew optics and photography better...
This one goes to the faves btw.
Totu