Silver gelatin fiber-based (FB) photographic printing represents the pinnacle of fine art darkroom craftsmanship, delivering deep D-Max blacks and centuries of archival longevity.

1. Archival Darkroom Processing Sequence (Fiber Paper)

  1. Developer (2 Minutes at 20°C): Standard paper developer (e.g., Ilford Multigrade or Dektol) with constant gentle tray agitation.
  2. Stop Bath (30 Seconds): 1.5% acetic acid solution neutralizing developer alkalinity instantly.
  3. Fixer 1 (First Bath, 60 Seconds): Rapid ammonium thiosulfate fixer dissolving unexposed silver halides.
  4. Fixer 2 (Second Archival Bath, 60 Seconds): Fresh secondary fixer ensuring zero residual silver complex contamination.
  5. Hypo Clearing Agent (HCA, 3 Minutes): Accelerates thiosulfate ion release from cellulose fiber paper matrix.
  6. Rapid Selenium Toning (1:20 Dilution, 3–5 Minutes): Converts elemental silver into silver selenide, increasing D-Max and protecting against atmospheric oxidation.
  7. Final Archival Wash (60 Minutes in Archival Washer): Flowing water removing all chemical salts to archival ISO 18902 standards.