Response to pushing tri-x/tmax; how do you develop?

If you set your camera for 800 film, then Tri-X should be about a stop underexposed. Experience shows that a little push of about 20 percent longer development time is good, and grain is not objectionable. Stopping and fixing remain the same. I've never pushed to 1600, but I suppose 30 percent might be called for, although contrast inherent in the scenes will be increased, along with grain. I believe pushing doesn't increase film speed but just makes highlights denser. So I prefer to use film at the speed it works best, and for me, Tri-X is best at 400.

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