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.
May I please use it on www.ponybox.com in a manipulation?
I will fully credit you and show you the finish product.
Thank you.
~Danielle♥