Hi,(posted 8957 days ago)I've used SFX 200 film and have been very pleased with the results. I rated it at 200 amd used a Red #25 and #29 filters. The #25 was comparably less effective than the #29. I developed it in HC-110 and unfortunately, the negs weren't very contrasty (I've been looking for a better developer) but printable. So it wasn't a big deal. However, after using Kodak's HIE Infrared I have to say that it is a cheaper alternative to HIE and easier to use.