When you photograph ghosts, do you use the infrared spectrum or UV? I'm just about to send a camera out for an IR conversion, and am just trying to decide if there is any benefit to a full spectrum conversion compared with a two spectrum conversion. Apart from potential ghost hunting, seeing how clean your hotel sheets are, checking if your kids have sunscreen on and making sure you haven't been passed some forged banknotes is there any other benefit to a UV conversion? What type of photographs do you take? And if you use the UV spectrum, what type of filter do you recommend?