Developer · Black and white
Harman/Ilford Microphen
AvailableB&WPowder
Fine grain developer that gives an effective film speed increase. Ilford says up to half a stop with most films, and more with HP5 Plus, Delta 400 Professional and Delta 3200 Professional.
- Type
- Powder
- Process
- B&W
- Temperature
- 20°C
- Dilutions
- 3
- Capacity
- 10
- Shelf life
- Unmixed powder indefinite
20–24°C (68–75°F)
rolls per litre
concentrate
Characteristics
GrainFine, level 1 of 3
AcutanceModerate, level 2 of 3
ContrastNormal, level 2 of 4
Fine grain with an effective speed increase
Dilutions
| Ratio | Use | Notes |
|---|---|---|
| stock | Replenishable | Reusable without replenishment: Ilford gives 10 films per litre, with the development time increased for each film. |
| 1+1 | One-shot | Diluted solution; Ilford says do not reuse and do not keep it more than 24 hours. |
| 1+3 | One-shot | Diluted solution; Ilford says do not reuse and do not keep it more than 24 hours. |
Shelf life
- Concentrate
- Unmixed powder indefinite
- Working Solution
- Stock solution 6 months in full capped containers (1 month half full). Diluted 1+1 or 1+3: no more than 24 hours.
Stock solution reused without replenishment, with the development time increased for each film.
Development times
| Film | Dilution | ISO | Time | Temp |
|---|---|---|---|---|
| Delta 3200 | stock | 3200 | 9m | 20°C (68°F) |
| Delta 3200 | 1+1 | 3200 | 12m 30s | 20°C (68°F) |
| Delta 400 | stock | 400 | 6m 30s | 20°C (68°F) |
| Delta 400 | 1+1 | 400 | 11m 30s | 20°C (68°F) |
| Delta 400 | stock | 800 | 8m 30s | 20°C (68°F) |
| Delta 400 | stock | 1600 | 10m 30s | 20°C (68°F) |
| Delta 400 | stock | 3200 | 14m | 20°C (68°F) |
| Kentmere Pan 100 | stock | 100 | 8m 30s | 20°C (68°F) |
| Kentmere Pan 100 | 1+1 | 100 | 10m 30s | 20°C (68°F) |
| Kentmere Pan 200 | stock | 200 | 5m 30s | 20°C (68°F) |
Showing 10 of 113 entries.
Full guides for Microphen
- HP5 Plus
- Delta 3200
- Delta 400
- FP4 Plus
- Fomapan 400 Action
- Kentmere Pan 400
- Kentmere Pan 100
- Ilford Delta 100
- Pan F Plus 50
- RPX 400
- Fomapan 100 Classic
- Fomapan 200 Creative
- Ortho Plus
- SFX 200
- Kentmere Pan 200
- Retropan 320 Soft
- Retro 80S
- Street Candy MTN 100
- Foma Ortho 400
- RPX 100
- Retro 400S
- AgfaPhoto APX 100 (2013-)
- AgfaPhoto APX 400 (2013-)
- Neopan 400 Professional
Often used for
Speed increase (up to half a stop with most films, more with fast films such as HP5 Plus, Delta 400 and Delta 3200)Push processing fast films with extended developmentFine grain with a speed gain
Limitations & warnings
- Powder requires mixing
Descriptions combine manufacturer specifications with community experience. Subjective assessments reflect common sentiment among photographers and may not match your results.