INFRARED
PHOTOGRAPHY WITH DIGITAL CAMERAS
Page
Six
Opaque Filters
As mentioned earlier, the opaque filters are designed to screen out most of the visible light spectrum and look black to the "visible eye." To use them, you'll need a tripod and will have to focus and compose your picture before you put the filter on the lens. The #18A filter produced a subtle color image with low contrast and required a six-stop correction [check this against the chart] in exposure. The color images produced by the # 18A in this sequence are more satisfactory than the black and white, but every subject and exposure produce new and fascinating results.
no filter
18a filter
caption: image made black and white through Photoshop
