Hi Anni,
Have a look at the processing times for Ilford HP5+. The two films are virtually identical. For HP5+, Tetenal specifies 13 minutes on
their website (20°C, 1+4, 3-second agitation or 70 rpm). That should serve as a starting point.
Expect coarse grain, hard negatives and flat shadows. You’ll need to test this combination with your own exposure and development settings, so it’s not for situations where you think, ‘Oh dear, I’ve got a really important film and need top results on the first try’.
Best regards,
Franz, who uses either Rodinal 1+50 or Microphen for this
