Chambers1ja8

Digital Infrared, Part I: Making Images

written by: Lloyd Chambers

Digital infrared photography is far more convenient and practical than film-based infrared shooting, but it remains technically challenging. By understanding exposure and white balance, hot-spots, backfocus, and sharpness, you’ll avoid frustrating trial and error and quickly begin to enjoy excellent results. I’ve been shooting digital infrared for half a decade now, and those years of experience have taught me a great deal. In this article, I share my key discoveries that make shooting digital infrared images a productive and satisfying effort. A follow-up article will delve into post-processing techniques. Infrared is the spectral band beyond deep red, starting at around Read more »

czanderson4ja13

Casein Printing

written by: Christina Z. Anderson

Casein is a colloid derived from milk. For those already versed in gum printing, casein printing is done much the same way: a colloid is mixed with a light-sensitive dichromate and watercolor, brushed onto paper and exposed under a negative to UV light. Where the light hits the most, the casein hardens the most. Where the light hits the least, the casein and pigment wash away in a simple water bath, and thus an image emerges. For each print, this exposure and development process is done multiple times, particularly for a tricolor print, which will require a red, yellow and Read more »