ILFORD SFX 200 35mm is a medium speed black & white film with extended red sensitivity which makes it the perfect choice for infra-red style images. When used with a deep red filter, SFX 200 renders blue skies almost black and green vegetation almost white to create a stunning infra-red look to your shots. Unlike traditional infra-red materials, SFX 200 can be loaded in subdued light and is compatible with all normal black & white developers producing high quality negatives of moderate contrast.