What Is Microfilm? The Complete Guide to Archival Microfilm Technology, Standards, and Supplies
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Key Facts: Microfilm Technology & Standards
Definition: Microfilm is a photographic film medium used to store miniaturised images of documents at reductions of 24× to 48×, readable with a microfilm reader or scanner
Formats: 16mm roll (standard for business records), 35mm roll (large format documents, newspapers, maps), microfiche (flat sheet, 98–270 frames), aperture cards (engineering drawings)
Archival lifespan: LE500-rated silver gelatin microfilm — 500+ year preservation life under ISO 18911 storage conditions (15–21°C, 20–40% RH)
Key standard: ISO 18911:2010 — Imaging materials: Processed silver-gelatin type black-and-white film — specifications for stability
LE500 rating: The highest archival stability rating for microfilm — required by national archives and government institutions worldwide
Fujifilm discontinuation: Fujifilm discontinued FM33 and FM66 microfilm production in December 2025
Replacement: MGD33 (Micrographics Data) — certified LE500-rated replacement for Fujifilm FM33 & FM66; MD AW3 for archive writer applications
Supplier: Micrographics Data Pte Ltd, Singapore — global supplier of 16mm and 35mm LE500 microfilm rolls, processing chemistry, and archive writers since 1989
Scanning: ST ViewScan 5 and Nextscan systems for microfilm-to-digital conversion with OCR output
Why microfilm persists: Air-gapped, tamper-proof, no power required to read, immune to cyberattack, no format obsolescence risk — the only preservation medium with a 500-year verified track record
