Stable Film Base, Valuable Images
Polyester film may be physically stable while still containing historically significant photographic content that benefits from digitisation.
PHOTOGRAPHIC HERITAGE & PRESERVATION
Polyester Film Digitisation & Archival Scanning
Professional digitisation of polyester-based photographic film, with high-resolution preservation capture and carefully managed digital outputs for archives, museums, libraries and private collections.
NATIONAL ARCHIVES-ALIGNED WORKFLOWHigh-resolution capture • TIFF/RAW • QA
Professional Polyester Film Digitisation
Polyester is a chemically stable photographic film base that became widely used from the 1950s onwards. Its dimensional stability and mechanical strength make it more stable than nitrate and acetate, but the photographic emulsion and gelatin layers can still be vulnerable to humidity, mould and poor storage conditions.
Our polyester film service is designed for collections where preservation-quality digital capture is required. The aim is to create a faithful digital representation while reducing unnecessary handling of the original film and providing practical access files for research, publication and online use.
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High-Resolution Film Capture
Capture can be specified at high resolution, including workflows up to 4800 PPI where appropriate for the original material.
Preservation & Access Outputs
Supply TIFF/RAW preservation masters together with JPEG and PDF access copies to suit different uses.
National Archives-Aligned Preservation Standards
The National Archives publishes guidance on digitisation covering file formats, resolution, colour, quality assurance and metadata. Our specialist workflows are designed around these principles and can be specified to suit the collection, preservation objectives and required outputs.
Preservation MastersHigh-resolution TIFF/RAW or another agreed preservation format, using lossless capture where appropriate.
ResolutionSpecified for the original material. Photographic transparencies can be captured at very high resolution where required.
Colour & ToneControlled colour capture, with 24-bit sRGB used for photographic material where appropriate.
QA & MetadataVisual checking, structured file information and preservation metadata can be built into the project workflow.
Polyester Film & Long-Term Preservation
The existing ODC information describes polyester as a tough, chemically stable film base introduced widely from the 1950s onwards. While the base is comparatively stable, the gelatin binder remains sensitive to high humidity and mould, so good storage and careful handling remain important.
National Archives-Aligned Image Standards
The National Archives digitisation guidance recommends appropriate resolution, lossless-capable image formats, 24-bit colour using an enumerated sRGB profile for non-microform material, immediate visual quality checks and preservation of scanning metadata. We apply these principles when specifying photographic film projects.
Preservation Masters & Access Copies
High-resolution TIFF/RAW masters can be created for long-term preservation, with JPEG and PDF versions produced for access, publication, online delivery or routine working use. The preservation master remains the highest-quality representation of the digitised original.
Metadata, QA & Fixity
Projects can be supplied with structured filenames, folder organisation and capture information. The National Archives recommends metadata about the scanning process and the use of SHA-256 checksums as fixity information to help identify changes or corruption over time.
Quality Assurance & Digital Preservation
Every archive project is treated as a controlled digitisation workflow rather than a simple file conversion. The capture specification, file format, naming, metadata, QA and delivery structure can all be agreed before production begins.
1. AssessReview the collection, condition, formats, risks and preservation objectives.
2. CaptureDigitise at the agreed resolution, colour specification and preservation quality.
3. Quality CheckInspect files for completeness, legibility, orientation, colour and capture quality.
4. Preserve & DeliverSupply organised preservation masters, access files and agreed metadata or fixity information.
Have a Polyester Film Collection?
Tell us what material you have, its approximate quantity and how you need the digital archive supplied. We can help define a preservation-focused capture specification and provide a quotation.