Film · Black and white negative
Foma Bohemia Retropan 320 Soft
Panchromatic ISO 320/26 film with fine grain and a wide range of half tones and 'soft light', intended for contact printing or 'retro' style enlarging (Foma). Wide exposure latitude: good results from EI 160 to EI 1250. Foma recommends its Retro Special Developer.
Foma still lists Retropan 320 soft with a current datasheet (120, 35mm 135-36, sheet); Wikipedia's list marks it discontinued 2015-2021, so check stock.
- Box speed
- ISO 320
- Process
- BW
- Formats
- 35mm, 120
- Grain
- Fine
- Latitude
- Good
- Reciprocity
- Not published
Characteristics
Reciprocity failure
No official data available. The manufacturer hasn't published reciprocity specifications for this film.
For long exposures, try starting with a 1.3 exponent (t' = t1.3) as a baseline and bracket your shots. This is a reasonable middle ground that works for many films.
Check Foma datasheet. Limited reciprocity data available.
Development times
| Developer | Dilution | ISO | Time | Temp |
|---|---|---|---|---|
| Microphen | stock | 320 | 10m 30s | 20°C / 68°F |
| HC-110 | 1+31 | 320 | 7m 30s | 20°C / 68°F |
| Microphen | stock | 640 | 15m | 20°C / 68°F |
| HC-110 | 1+31 | 640 | 11m | 20°C / 68°F |
| Rollei Supergrain | 1+9 | 320 | 6m 30s | 20°C / 68°F |
| Rollei Supergrain | 1+9 | 640 | 10m | 20°C / 68°F |
| Rodinal | 1+25 | 320 | 7m | 20°C / 68°F |
| Rodinal | 1+50 | 320 | 14m | 20°C / 68°F |
Often used for
Help improve this page. Some information for this film is limited. If you have experience shooting Retropan 320 Soft or know of published data we're missing, we'd love to hear from you.
Get in touchDescriptions combine manufacturer specifications with community experience. Subjective assessments reflect common sentiment among photographers and may not match your results.