rolllog

Developer

Ilford Perceptol

Development times for 18 films, each taken from that film's datasheet or a named source.

Films

FilmDilutionBox speed, 20 °CEI
Foma Cine Ortho 400ISO 400stockintermittent9:00–10:00400
Foma Ortho 400ISO 400stockintermittent9:00–10:00400
Fomapan 100 ClassicISO 100stockintermittent8:00100
Fomapan 200 CreativeISO 200stockintermittent6:00200
Fomapan 400 ActionISO 400stockintermittent9:00–10:00400
Fomapan Cine 100ISO 100stockintermittent8:00100
Fomapan Cine 400ISO 400stockintermittent9:00–10:00400
Ilford Delta 100 ProfessionalISO 1001+1intermittent17:0050–100
1+3intermittent22:0050–100
stockintermittent15:0050–100
Ilford Delta 3200 ProfessionalISO 1000stockintermittent—400–3200
Ilford Delta 400 ProfessionalISO 4001+1intermittent—200–320
1+3intermittent—200–320
stockintermittent—200–250
Ilford FP4 PlusISO 1251+1intermittent15:0050–125
1+3intermittent21:0050–125
stockintermittent12:0050–125
Ilford HP5 PlusISO 400stockintermittent—50–250
1+1intermittent—320
1+3intermittent—320
Ilford Ortho PlusISO 80stockintermittent13:00 / 16:0080
Ilford Pan F PlusISO 501+1intermittent15:0025–50
1+3intermittent17:0025–50
stockintermittent14:0025–50
Ilford SFX 200ISO 2001+1intermittent20:00200
stockintermittent14:30200
Kentmere Pan 100ISO 1001+1intermittent15:3050–100
stockintermittent12:3050–100
Kentmere Pan 200ISO 2001+1intermittent16:00100–200
stockintermittent13:00100–200
Kentmere Pan 400ISO 4001+1intermittent—320

Time in min:sec at the film's box speed and 20 °C; a dash means the source gives no time for that. Each film's page has every EI and temperature.

Same data from the API

curl https://rolllog.io/api/v1/developers/ilford-perceptol