Efke PL25 vs PL50

[braxus]

This goes for the roll films too, but I am wondering is there any real differences between Efke 25 and Efke 50 other then grain size? I am debating to get some 50 speed still available, but not sure how it compares. Ive only used the 25 and 100 in the past. Efke 25 is one of my favorite B&W films and I just procured some PL 25 Ort N.O.S. from 2015.

[Drew Wiley]

There were some odd questionably labeled versions of the 100 speed product which might have been sold in that manner because the emulsion was out of spec. But to my knowledge, Efke 25 was unique with respect to its orthochromatic sensitivity (necessary for its fine grain). It also has an exceptionally long tonality scale with high gamma.