ILFORD Sfx Film With Increased Red Sensitivity 135/36

A unique black and white negative film with extend red sensitivity, SFX 200 from Ilford is a medium-speed film with peak red sensitivity to 720nm, which can further be extended to 740nm with the use of a deep red filter to produce infrared-like results. It has a nominal sensitivity of ISO 200/24° along with a wide exposure latitude and tonal range.