The 510-Pyro/Tri-X combination at EI 1600 produces surprisingly small grain for a two stop push. In addition it held the highlight detail and the shadow detail extremely well. A very effective two stop push is easily attainable with this combination.

Film: Tri-X 400

EI: 1600

Format: 120 Medium Format

Developer: 510-Pyro

Dilution: 1:100

Time: 18:00

Temp: 20C/68F

Agitation: Rotary

Presoak: 3 minutes water presoak

Fixer: TF-4


When pushing to EI 800 the following time and dilution have been working well:

Film: Tri-X 400

EI: 800

Dilution: 1:100

Time: 11:00

Temp: 20C/68F

Agitation: Rotary

Presoak: 3 minutes water presoak

Fixer: TF-4