I guess it's because of when I grew up, but if someone says "pro film", Tri-X is the one I think of. To U.S. magazine and newspaper photographers of the past five decades, the standard B&W film was Tri-X.
Regular Tri-X or Tri-X Pan Profesisonal? There's a difference...
~Stone | Sent w/ iPhone using Tapatalk
~Stone | "...of course, that's just my opinion. I could be wrong."~Dennis Miller