rolllog

Foma Bohemia

Foma Ortho 400

ISO 400 black-and-white negative, orthochromatic

ISO 400 orthochromatic black-and-white negative without red sensitivity, so it can be handled briefly under an orange safelight; suits stylised portraits and landscapes.

At a glance

Type
Black-and-white negative
Box speed
ISO 400/27°
Balance
orthochromatic
Process
B&W, B&W reversal
Formats
120, 135, sheet
Base
acetate
Status
in production
Source document
Foma Ortho 400 datasheet, rev. 2025-01

Exposure

LightFilterEI / adjust
Box speednone400

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Latitude

2 stops under, 1.5 stops over.

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Reciprocity

No correction needed from 1/1,000 s to 1/2 s.

MeteredAdjustUse
1 s+1 stop1.5 s
10 s+2½ stop60 s
100 s+3 stop800 s

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Processing

  • B&WNormal
  • B&W reversalNormal — Possible with Foma's R-100 process; roll and sheet film suit it best.

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Development times 21

Foma Fomadon Excel 2 · EI 400
DilutionEI°CAgitationTime
stock40020intermittent7:00
stock40030intermittent2:00

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Foma Fomadon LQN 2 · EI 400
DilutionEI°CAgitationTime
1+1040020intermittent8:30–10:00
1+1040030intermittent4:00

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Foma Fomadon P 2 · EI 400
DilutionEI°CAgitationTime
stock40020intermittent9:30–10:30
stock40030intermittent6:00

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Foma Fomadon R09 1 · EI 400
DilutionEI°CAgitationTime
1+5040020intermittent10:00–12:00

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

ILFORD ID-11 2 · EI 400
DilutionEI°CAgitationTime
stock40020intermittent7:00–8:00
stock40030intermittent2:30

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

ILFORD MICROPHEN 2 · EI 400
DilutionEI°CAgitationTime
stock40020intermittent8:00–9:00
stock40030intermittent3:30

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

ILFORD PERCEPTOL 2 · EI 400
DilutionEI°CAgitationTime
stock40020intermittent9:00–10:00
stock40030intermittent4:00

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Kodak D-76 2 · EI 400
DilutionEI°CAgitationTime
stock40020intermittent7:00–8:00
stock40030intermittent2:30

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Kodak Xtol 2 · EI 400
DilutionEI°CAgitationTime
stock40020intermittent7:00
stock40030intermittent2:00

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Tetenal Ultrafin Liquid 2 · EI 400
DilutionEI°CAgitationTime
1+2040020intermittent13:00–14:30
1+2040030intermittent4:30

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Tetenal Ultrafin Plus 2 · EI 400
DilutionEI°CAgitationTime
1+440020intermittent7:00–8:00
1+440030intermittent2:30

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

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
  • 13530.5 m · 0.125 mm acetate base
  • 13536 exp. · 0.125 mm acetate base
  • sheet0.175 mm polyester base

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Image structure

RMS granularity
17.5
Resolving power, TOC 1000:1
85 lines/mm

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Handling and storage

Darkroom
safelight ok
Store unexposed film
at 25 °C or below
Freezing
allowed (warm up before opening)
Exposed film
Process exposed film as soon as possible.

Source: Foma Bohemia Foma Ortho 400 datasheet (2025-01)

Sources

  1. DatasheetFoma Bohemia Foma Ortho 400 datasheet (2025-01) · checked 2026-10-28

Unknown values are left out, never guessed. Corrections welcome.

Same data, as JSON

curl /api/v1/films/foma-ortho-400

Or ask an AI assistant through the MCP server: get_film("foma-ortho-400").