Agitation first minute, than every fifth.
Recipes & dev times using Film Ilford HP5+ 400
Ilford HP5+ 400 at 800 in Ilford Microphen 1+1
16 minutes, 30 seconds
Ilford HP5+ 400 at 5000 in Ilford Microphen 1:0
18 minutes, 20 seconds at 20°C/68.0°F
Standard development @ 22°C, standard agitation.
Ilford HP5+ 400 in Ilford Microphen 1+1
12 minutes
Nikon F100 Agitation First 30'' 4 Agitation every 1 minute
