Last one is my vague attempt at sky photography. The exposure wasn't anywhere near long enough to get the pretty effects, but then I was just playing around. All Neopan 400.
Just about the first roll of Fortepan 400 that came out well exposed. I stuck to a development time of 15-16 minutes in "new" ADOX APH09 1+75. Rated speed was about 200.
Using the "classic" Kodak Tri-X. Very grainy, the tonality is indeed classic, but processed and exposed in the same way as HP5 it's unforgiving and less pleasing to my eyes. I'll stick to Neopan 400 and HP5.
Two more examples from a roll of NPS 160 that I used in my attempts at C-41 processing using a kit some time ago. Worked better than I realised at the time.