Kodak T-Max 100 vs Tri-X 320P: Choosing 4x5 Film
By WALKENS House of Film | Published: 2026-11-01
Category: Comparisons
Compare Kodak T-Max 100 and Tri-X 320P 4x5 sheet film on grain, speed, and tonal character. See which black and white sheet film fits your large format work.
Quick answer
Choose Kodak T-Max 100 4x5 when you want the finest grain and maximum detail for landscapes or architecture in controlled light. Choose Tri-X 320P 4x5 when you need ISO 320 speed for portraits, flash, or hand-held work and prefer smoother, more forgiving tonal gradations.
Grain and sharpness: the detail trade-off
T-Max 100 uses a T-GRAIN emulsion that delivers very fine grain and high resolving power. In a 4x5 negative, that means you can enlarge aggressively or scan at high resolution without grain becoming a visual texture. Tri-X 320P has fine grain and high sharpness, but its ISO 320 speed inherently produces more grain than a 100-speed film. The difference matters most when you plan to print large or crop into the sheet.
If your workflow depends on capturing every shingle on a roof or every leaf in a landscape, T-Max 100 gives you a cleaner starting point. If you prefer a bit of grain as part of the image's character, Tri-X 320P won't disappoint.
Speed and exposure latitude in the field
T-Max 100 is an ISO 100/21° film in standard process. That slower speed is an advantage in bright conditions where you want to use wider apertures or slower shutter speeds, but it becomes a limitation when light drops. Tri-X 320P is rated ISO 320/26°, roughly 1.5 stops faster, which can make the difference between hand-holding and setting up a tripod. Both films offer wide exposure latitude, so you can recover detail in shadows and highlights, but the faster film gives you more flexibility in changing light.
Tonal character: clean versus classic
T-Max 100 produces a wide tonal range with high sharpness, often described as modern and clean. Tri-X 320P is known for smooth tonal gradations and a slightly more forgiving rendering of skin tones, which is why it's well suited for portraits and controlled lighting. Neither is better in absolute terms; the choice depends on whether you want a neutral, precise starting point or a film that adds a touch of smoothness to midtones.
Trade-offs at a glance
- Grain versus speed: T-Max 100 gives you the finest grain but requires more light or longer exposures. Tri-X 320P gives you 1.5 stops more speed at the cost of slightly more visible grain. Decide whether clean detail or handheld flexibility matters more for your typical subjects.
- Contrast and tonal rendering: T-Max 100 tends to produce crisp, high-sharpness negatives with a wide tonal range. Tri-X 320P offers smoother gradations that flatter skin tones and controlled lighting. If you photograph people or use flash, Tri-X 320P's tonal smoothness is a practical advantage.
- Exposure latitude and forgiveness: Both films have wide exposure latitude, but Tri-X 320P's higher speed gives you more margin in fluctuating light. T-Max 100 rewards careful metering with exceptional detail. For landscapes on a tripod, T-Max 100's demand for precision is rarely a problem; for documentary or portrait work, Tri-X 320P is more forgiving.
Product facts
- Kodak T-Max 100 4x5 - 10 Sheets: Very fine grain, T-GRAIN emulsion, high sharpness and resolving power. These traits make it easier to capture and later enlarge fine detail from a 4x5 negative.
Kodak T-Max 100 4x5 - 10 Sheets - Kodak Tri-X 320P 4x5 - 10 Sheets: ISO 320/26° with smooth tonal gradations and wide exposure latitude. The extra speed helps in low light or when using flash, while the tonal range keeps highlights and shadows manageable.
Kodak Tri-X 320P 4x5 - 10 Sheets
Which film fits your work?
Best for
- Landscape and architectural photographers working from a tripod in good light
- Anyone who needs maximum detail for large prints or high-resolution scans
- Photographers who prefer a clean, modern tonal rendering
Not for
- Hand-held or low-light work where ISO 100 would force unacceptably slow shutter speeds
- Portrait sessions with flash where smoother midtones are a priority
- Photographers who want a classic, slightly grainier look straight out of the camera
