At a glance
- Type
- Colour negative
- Box speed
- ISO 400/27°
- Balance
- daylight
- Process
- C-41
- Formats
- 120, 135, 4x5, 8x10, sheet
- Base
- acetate
- DX coded
- yes
- Status
- in production
- Introduced
- 1998
- Source document
- E-4050, rev. 2016-02
Exposure
| Light | Filter | EI / adjust |
|---|---|---|
| Daylight | none | 400 |
| Photolamp 3400 K | 80B | 125 |
| Tungsten 3200 K | 80A | 100 |
| Fluorescent daylight | 20R + 5M | +1 stop |
| Fluorescent white | 40B + 5C | +1⅔ stop |
| Fluorescent warm white | 40B + 40C | +2 stop |
| Fluorescent warm white deluxe | 40B + 50C | +2 stop |
| Fluorescent cool white | 30B | +1 stop |
| Fluorescent cool white deluxe | 40C + 10M | +1 stop |
| HID high pressure sodium vapor | 50B + 70C | +2⅔ stop |
| HID metal halide | 5C + 10M | +⅔ stop |
| HID mercury vapor with phosphor | 30B + 5C | +1 stop |
| HID mercury vapor without phosphor | 80R | +1⅔ stop |
Source: Kodak Alaris E-4050 (2016-02)
Reciprocity
No correction needed from 1/10,000 s to 1 s.
Source: Kodak Alaris E-4050 (2016-02)
Processing
- C-41Normal
Source: Kodak Alaris E-4050 (2016-02)
Shop prices
- £17.09Parallax PhotographicUK
- £18.00Carmarthen CamerasUK
- £18.80Castle CamerasUK
- £14.00Carmarthen CamerasUK
Price history GBP per roll
- Now
- £17.09
- Lowest
- £17.09 26 Oct
- Highest
- £17.09 26 Oct
- Change
- 0.0%
Lowest in-stock price Shop average
Per roll, incl. VAT, excl. shipping. Each shop's own currency, not converted. Checked 28 Oct, 13:13 UTC. Line: last 30 days.
curl /api/v1/films/kodak-portra-400/prices?format=120&country=GBFormats
- 1200.11 mm acetate base
- 1205-pack
- 1350.13 mm acetate base
- 13536 exp. · 5-pack
- 4x510 sheets
- 8x1010 sheets
- sheet0.19 mm polyester base
Sources: Kodak Alaris E-4050 (2016-02); Focus Nordic (distributor)
Image structure
| Negative | Print (in) | Magnification | PGI |
|---|---|---|---|
| 120 | 4x6 | 2.6× | 25 |
| 120 | 8x10 | 4.4× | 37 |
| 120 | 16x20 | 8.8× | 59 |
| 135 | 4x6 | 4.4× | 37 |
| 135 | 8x10 | 8.8× | 59 |
| 135 | 16x20 | 17.8× | 89 |
| 4x5 | 4x6 | 1.2× | < 25 |
| 4x5 | 8x10 | 2× | < 25 |
| 4x5 | 16x20 | 4× | 36 |
Source: Kodak Alaris E-4050 (2016-02)
Handling and storage
- Darkroom
- Total darkness
- Store unexposed film
- at 21 °C or below
- Refrigerate
- yes, for longer storage
- Freezing
- allowed (warm up before opening)
- Exposed film
- Process film as soon as possible after exposure.
Source: Kodak Alaris E-4050 (2016-02)
Sources
- DatasheetKodak Alaris E-4050 (2016-02) · checked 2026-10-14
- DistributorFocus Nordic · checked 2026-10-13
Unknown values are left out, never guessed. Corrections welcome.
Same data, as JSON
curl /api/v1/films/kodak-portra-400Or ask an AI assistant through the MCP server: get_film("kodak-portra-400").