"...There is something that just hasn't let me enjoy Delta 100. It's grain is fine, but its the tonal range or something. What are you developing it in? I do FP4 in rodinal or HC110 and prefer it to Delta 100."
I develop Delta 100 in Rodinal 50:1 and in Pyrocat-HD. I prefer the results I obtain with in Pyrocat-HD.
However, I strongly prefer the results I get with Efke 100 developed in Pyrocat-HD.
I have done side-by-side comparisons of 4x5 Panatomic-X negatives and same-scene test negatives shot on Polaroid 55PN. I concluded that the two were essentially identical.