If you want a current film with a Panatomic-X-like emphasis on fine grain and slower speed, the closest suggestions from the community are slow or medium-slow black-and-white films such as Rollei RPX 25, Rollei Retro 80S, and Fujifilm Neopan Acros 100.

Of those, Rollei RPX 25 stands out because its very low ISO is most in line with the slow-speed Panatomic-X approach. Rollei Retro 80S and Acros 100 are also good choices if you can accept a bit more speed in exchange for easier handling and broad availability.

In general, slower films tend to deliver finer grain and high detail, which is why they’re often favored for landscapes, buildings, and careful portrait work. The exact “look” will also depend heavily on exposure, development, printing, and any hand-tinting you do afterward.

So, if your priority is getting as close as possible to that classic slow-film character, start with RPX 25; if you want a practical modern alternative with fine grain, try Acros 100 or Retro 80S and test which rendering you prefer.