6 October 2026

When it comes to Tri-X, I’ve always seen this film as having a wide latitude. I have since learned that the new formulation, 400TX, first released in 2007, isn’t as good as the pre-2007 version, mainly because it has lower silver content. But when it comes to 400-speed films, Tri-X has been a long-time favourite of mine, so I figured it was time to get a full view of what the film can do and is ASA-1600 the best EI for Diafine? Film Specs Manufacturer: Kodak Name: Tri-X 400 Type: Panchromatic B&W Film Base: Acetate Film Speed: ASA-400 Formats Available: 135 (35mm) & 120 ForRead More →