Ilford SFX

SFX is a black-and-white film from Ilford Photo with extended sensitivity into the near-infrared at 740 nm. It can be used as a panchromatic film on its own, or with different red/infrared filters to give varying levels of the effect seen in infrared photography; i.e. dark skies and bright plant foliage. Ilford makes a 'deep red' filter specifically for this film, but others can be used as well.

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