A while ago I got this inexpensive inferred filter and tried it and did not work and did not do much else with it. Recenty I decided to take it out and play with it.
The results were interesting as you can see and very harsh red because of the "inferred". The filter is very dark so you have to have a long exposure to capture the light through the filter. One of the things I dont like about the filter is its very hard to see what you are photographing because of the dark filter. Some of the results I got were better then others and there are a few I like.