Today’s Post by Joe Farace
“Wherever there is light, one can photograph”—Alfred Stiegletz
Or not. Infrared radiation has some of the same properties as visible light. It can be focused and reflected like visible light and can be aligned and even polarized. Infrared film is sensitive to IR radiation, some ultraviolet radiation and to all wavelengths of visible light but is not as sensitive to green light.
Eastman Kodak previously offered a black and white infrared film called High Speed Infrared (HIE) and Ilford still offers its SFX 200 film, a medium-speed film with peak red sensitivity to 720 nanometers, which can be extended to 740 nanometers by using a deep red filter (25A) to produce infrared-like results. It has a nominal sensitivity of ISO 200 along with a wide exposure latitude and tonal range. More about nanometers (nm) and how that unit of measurement relates to infrared photography can be found here.
How I made this shot: The image at left was originally captured on a snowy day in my former Baltimore neighborhood, the 200-year old village of Dickeyville, using Kodak’s black and white high-speed infrared negative film. Film was processed in my old darkroom. This film frame was scanned as a positive image and converted into what you see here. No exposure data was recorded back in those pre-EXIF days.
The downsides: Infrared film must be loaded into your camera in complete darkness to prevent fogging. You will also have to unload it in total darkness too and, most likely, process it yourself. Historically infrared films had the reputation that they could not be processed in plastic tanks but the JOBO tanks that I used back in the day have been tested to be compatible with IR films and worked just fine. Since many film changing bags are not opaque to IR radiation, your biggest problem will be loading the film onto the reels before processing which is best done in a proper darkroom to adequately assure against fogging.
I’ve found that Life Pixel does a great job with IR conversions and they’ve done conversions for some of my Canon DSLRs as well as all of my Panasonic Lumix G-series cameras, including a GX1 that uses their new Hyper Color conversion. This is not a paid nor sponsored endorsement, just my experience.
My book, The Complete Guide to Digital Infrared Photography is available from Amazon for with used copies selling for $18.31, as I write this. Creative Digital Monochrome Effects has a chapter on IR photography and is available from Amazon with new copies at $33.65 with used copies starting at a little more than two bucks, as I write this.