Agfapan APX 25 is on the way out. Agfa has discontinued this film. However there is a new super fine grain high resolution B&W film from a small comapny in Germany(posted 8649 days ago)http://www.gigabitfilm.de
The English site is not up yet, but there are great example of the increidble resolution of this film. It has a resoultion of 720 lpmm at 1:1000 and ASA 40, far exceeds Kodak technical Pan ASA 25/ 320 LPMM Look at the 1000x enlargement of watch on the lady's hand at upper left corner, which in turn is a 100x enlargement of the 35mm negative on upper right A 35mm negative can easily enlarge to 100" x 150"