How to Do Black & White
Infrared Photography With
Digital Cameras
by Jim Doty, Jr.
O'Haver Lake and Mt. Ouray (Colorado) in Infrared Light
It is possible to capture infrared black and white images with a number of digital cameras that aren't specifically designed for infrared photography. Although many of these cameras have an infrared cut-off filter to eliminate infrared light from reaching the sensor, with the right filter, enough infrared and/or near infrared light gets through to make this kind of photo possible. It works better with some digital cameras than others (and won't work at all with some).
O'Haver Lake and Mt. Ouray (Colorado) in Black and White
Infrared black and white photography has a different look than regular black and white photography. Compare the two images above. The second image is a
straight forward black and white image which was converted from the color image at the end of this article.
Subjects that emit infrared light are recorded as white or light tones and subjects that emit very little or
none are recorded as black or dark tones. In infrared light, blue skys look very dark and vegetation records as light to very light tones. In straight black and white photography, blue skys and vegetation record as shades of
gray unless some kind of filtration is used.
To do infrared photography with a digital camera, use a Hoya R72 infrared filter. These are expensive (around $275 in a 77mm size). Set the camera on a tripod, compose, and
focus before you put the filter on the lens. The filter is so dark that you won't be able to see through the viewfinder. Exposures are long. On a bright, sunny day, start with ISO 100, f/8 and 30 seconds and bracket exposures
from 15 seconds to 1 minute.
The resulting image will be red on the LCD viewing screen. Transfer the image to your computer, use Photoshop, Photoshop Elements, or some other image editing software to remove the red color
caste (desaturate the image). Then use "levels" to tweak the contrast. If you did everything right and picked a good subject, you now have a dramatic, black and white infrared image!
Do a search on the internet to see if
you can do digital infrared photography with your camera. If you can, digital black and white infrared photography is a lot less fuss and bother than infrared film. With infrared film, you had to take a lot of extra precautions
which included opening the film canister, loading and unloading the camera, and putting the film back in the cannister, all in absolute darkness. Ah, the good old days.
O'Haver Lake and Mt. Ouray (Colorado) in Color
