I don't ever remember being particularly enamored with Panatomic X back when it was available. Finer grain than Plus X was about all that recomended it. I always used Ilford Pan F as my slow, fine B&W film. I don't know whether it is the reformulations over the years but I am even more impressed with it's grain and tone now. I rate it at 50 which is fine for general use in most outdoor situations, even hand held.