Kodak · ISO 400 B&W negative
Kodak T-MAX 400
Wire services and newspaper photo desks ran T-MAX 400 through their processors for roughly two decades before digital killed the darkroom workflow entirely. It was the faster, cleaner answer to Tri-X: same ISO, sharper resolving power, tighter grain structure. The Associated Press standardized on it through most of the 1990s because you could read the faces in crowd shots that Tri-X would have turned into a textured smear.
The T-grain structure gives TMY a different aesthetic than conventional 400-speed emulsions. Grain is more micro-structured, less salt-and-pepper, which some photographers love and others find cold. The tonal response is technically superior to Tri-X: cleaner highlights, better shadow separation, more predictable reciprocity. If you measure image quality on resolution charts, T-MAX 400 wins. If you measure it in how a print feels at arm's length, opinions diverge.
Push it to 1600 and you get images that look efficient rather than gritty. The grain tightens rather than opening up the way Tri-X or HP5+ does, which can read as clinical in low light reportage. That said, it holds shadow detail at 1600 better than Tri-X does, which is why it was the working press choice for available-light sports well into the 2000s.
Available in 35mm and 120. Develops in standard black-and-white chemistry such as D-76 or HC-110; use T-MAX developer if you want to push cleanly.
Zone Light Meter applies a reciprocity exponent of 1.04 past one second. This is among the flattest reciprocity curves of any film on the market, and it means long-exposure corrections are almost trivially small. A ten-second meter reading barely needs adjustment. For night work requiring predictability over mood, this is a serious advantage.
How the app handles this stock
- Box speed: ISO 400. Picker exposes pull/push chips so you can shoot it at any speed you want and the meter follows.
- Reciprocity: Above one second the app raises metered time to the power of 1.04.
- Expired film: if you load an old roll, set the expiry year and storage in the app and the ISO scales for you. B&W negative decay rates are baked in.