In addition to Michael's comments I would like to add that Calbe A49 is also great for pushing films (very much unlike Rodinal, which loses some film speed); I like it a lot for portraits, or for pushing TMax 3200 up to EI 3200 (the real speed is around 1000 to 1250) - works well with A49 1+1, 20 min.
If diluted, A49 still is not as sharp as Rodinal (which I prefer for landscapes or architecture, though I recently switched to a homebrew recipe by Barry Thornton, which gives more film speed and less grain).
Also, if used at 1+2 or higher dilutions, you won't reach very high negative contrast levels even with longer developing times, for me 1+1 is the ideal compromise; I don't know which film you use generally, but I love Fuji Neopan 400 (shot at 320) in A49 1+1, 13 min., for portraits (and Neopan 400 at EI 250 in Rodinal 1+50, 9 min., for landscapes).
Roman
If diluted, A49 still is not as sharp as Rodinal (which I prefer for landscapes or architecture, though I recently switched to a homebrew recipe by Barry Thornton, which gives more film speed and less grain).
Also, if used at 1+2 or higher dilutions, you won't reach very high negative contrast levels even with longer developing times, for me 1+1 is the ideal compromise; I don't know which film you use generally, but I love Fuji Neopan 400 (shot at 320) in A49 1+1, 13 min., for portraits (and Neopan 400 at EI 250 in Rodinal 1+50, 9 min., for landscapes).
Roman
