An IR filter! :O Just got it, so I just took some test photos of my street. :P Pretty hard to get it sharp though.. Pretty hard overall. I don't know anything about these filters. :D Colors got kinda eww atm though.. XD I need to try this on a sunny day with no clouds.
Update: I read a little about it and learned a little about the post processing of the raw file. So I managed to fix the white balance and stuff. :)
It's more like a serious shot now! :D I used a pwning program called RAW Therapee and finally some Photoshop on the processed image.