At a glance
- Type
- Black-and-white negative
- Box speed
- ISO 320/26°
- Balance
- panchromatic
- Process
- B&W
- Formats
- 120, 135, sheet
- Base
- acetate
- Status
- in production
- Source document
- Retropan 320 Soft datasheet, rev. 2019-09
Exposure
| Light | Filter | EI / adjust |
|---|---|---|
| Box speed | none | 320 |
Latitude
2 stops under, 1 stops over.
Reciprocity
No correction needed from 1/1,000 s to 1/2 s.
| Metered | Adjust | Use |
|---|---|---|
| 1 s | +1 stop | 1.5 s |
| 10 s | +2½ stop | 60 s |
| 100 s | +3 stop | 800 s |
Processing
- B&WNormal
Development times 10
Foma Retro Special Developer 2 · EI 320, 640
| Dilution | EI | °C | Agitation | Time |
|---|---|---|---|---|
| stock | 320 | 20 | intermittent | 4:00–5:00 |
| stock | 640 | 20 | intermittent | 7:00–8:00 |
ILFORD MICROPHEN 2 · EI 320, 640
| Dilution | EI | °C | Agitation | Time |
|---|---|---|---|---|
| stock | 320 | 20 | intermittent | 10:00–11:00 |
| stock | 640 | 20 | intermittent | 15:00–17:00 |
Kodak HC-110 2 · EI 320, 640
| Dilution | EI | °C | Agitation | Time |
|---|---|---|---|---|
| B | 320 | 20 | intermittent | 7:00–8:00 |
| B | 640 | 20 | intermittent | 11:00–13:00 |
Rollei Supergrain 2 · EI 320, 640
| Dilution | EI | °C | Agitation | Time |
|---|---|---|---|---|
| 1+9 | 320 | 20 | intermittent | 6:30–7:30 |
| 1+9 | 640 | 20 | intermittent | 10:00–11:00 |
Spur NHC 2 · EI 320, 640
| Dilution | EI | °C | Agitation | Time |
|---|---|---|---|---|
| 1+15 | 320 | 20 | intermittent | 16:00–17:00 |
| 1+15 | 640 | 20 | intermittent | 25:00–27:00 |
Time in min:sec. Starting points from the source; test with your own process.
Shop prices
No shop prices for this film yet. The price watch checks shops once a day.
Formats
- 1200.1 mm polyester base
- 13517 m · 0.125 mm acetate base
- 13530.5 m · 0.125 mm acetate base
- 13536 exp. · 0.125 mm acetate base
- sheet0.175 mm polyester base
Handling and storage
- Darkroom
- Total darkness
- Store unexposed film
- at 25 °C or below
- Freezing
- allowed (warm up before opening)
- Exposed film
- Process exposed film as soon as possible.
Sources
- DatasheetFoma Bohemia Retropan 320 Soft datasheet (2019-09) · checked 2026-10-28
Unknown values are left out, never guessed. Corrections welcome.
Same data, as JSON
curl /api/v1/films/foma-retropan-320-softOr ask an AI assistant through the MCP server: get_film("foma-retropan-320-soft").