I'd not heard of this idea. Inspired, I went to Freestyle and asked for an IR gel filter, and they sold me a Lee 87C. After I got home, I did some research and decided that the 87C's cutoff is way to high for the Efke film I was using, and gave up on the idea.... This was several months ago, back before I knew Efke was no longer going to make the darn film.
Originally Posted by glbeas
Anyway, the point of this post is that during my internet travels, I came across http://www.xumeadapters.com/. Seems like a winner. They don't come in 52mm yet though.