Pushing Tri-X 400 2 stops to 1600 B&W

[Pushed +2] At a stop push is when you’ll really start noticing a large increase in contrast and grain. As you can see, the shadows are very dark and the highlight are very bright, very close to being blown out.

Tri-X 400 pushed 2 stops to 1600 B&W

Example of Pushing Film 2 Stops

The pushing or pulling process involves shooting and developing film at a different ISO then what the film is rated for. Let’s say you want to push your 400 ISO film 1 stop (+1), set your camera to 800 ISO and shoot/meter the whole roll as 800 ISO. When the roll is finished, clearly mark the speed on the film canister. Marking the canisters is for your reference in completing the order form and letting the photo lab know how to adjust development time.
Read about Everything you need to know about Shooting and Developing Pushed or Pulled Film