Ilford SFX Film

Yes, to achieve the signature infrared look—where skies turn dark and foliage appears white—you will need to use a deep red filter. While the film has extended red sensitivity, the filter is essential for blocking other light wavelengths and creating that dramatic contrast.

Absolutely. Unlike some specialized infrared films that require unique handling, SFX is designed to be processed in standard black and white chemistry. You can use the same developers you would use for films like HP5 or FP4.

It is technically a panchromatic film with extended red sensitivity, not a true infrared film. This makes it much easier to handle because you don't need to load it in total darkness, but it still provides that distinct, surreal aesthetic when paired with the right filters.

The film is rated at ISO 200. However, if you are using a deep red filter to get the infrared effect, remember to compensate for the filter factor by opening up your aperture or slowing your shutter speed accordingly.

Yes, you can experiment with orange, yellow, or even blue filters to alter the contrast and tonal rendering of your images. Each filter will interact differently with the film's extended red sensitivity, allowing for a wide range of creative control.