This folder is for IR Tutorials and images that illustrate and/or explain technical aspects of IR photography. Normal criteria about the aesthetic aspects of images do not apply for submissions to this folder, but submissions will, nevertheless, be subject to approval regarding relevance and content in the normal way. Technical matters might include aspects of white balance control, unusual effects, hot spotting, lens suitability, and so on. Images illustrating problems encountered in capturing and processing IR images could also be considered.