Exposing Tri-X

[jason1388]

ISO 200 at all times for Tri-x 320 sheet film

[Stephen Benskin]

So many different answers and somehow they all seem to work. The speed of the film is the ISO. Your personal metering method and personal taste has a greater influence on how you will want to rate the film than the results from some additional testing procedure that generally has its own collection of flaws. My suggestion is to start with the ISO speed and see what works best for you. The real key is processing. This is where testing is most important. Be consistent with your processing and know what contrast you are processing to.