I have 3 digital infrared converted cameras. I'm always looking for hints on shooting and especially on how better to process images in Photoshop. This is the 4th edition, and dates back to 1998 (shame on me for not checking closer). There are exactly 2 pages on Infrared Digital cameras (none I have ever heard of). If you want to shoot infrared film, this book is still very dated. The last 2/3 of the book consist of infrared images from the author's portfolio. I was enticed by the glowing reviews, but found the book totally useless for my needs.