Tech tip · Document Archiving
Sources for Resolution Targets
Suppliers of resolution targets for microfilm filming and duplication quality control.
1 min readEastman Park Micrographics
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Case studies, articles, technical tips and news about medical imaging.
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Tech tip · Document Archiving
Long-Term Microfilm Storage Tips for Archive Vaults
Standards requirements and common mistakes in archive vaults that put long-term microfilm records at risk, with ANSI/AIIM and ISO references.
2 min readEastman Park Micrographics
Tech tip · Document Archiving
Approximate Document Images per 16mm Microfilm Roll
Approximate number of document images per 16mm microfilm roll by reduction ratio, simplex or duplex mode, film length and document length.
2 min readEastman Park Micrographics
Tech tip · Document Archiving
Silver Recovery Techniques in Micrographics
Silver recovery in micrographics: metallic replacement and electrolytic plating, and why recovery matters for economics and regulations.
1 min readEastman Park Micrographics
Tech tip · Document Archiving
Daily Planetary Camera Cleaning Procedure
Daily planetary camera cleaning of lamps, film unit, document board and lens with a damp lint-free cloth to prevent image loss.
1 min readEastman Park Micrographics
Tech tip · Document Archiving
EPM Tech Tip 089: Density Range for the Kodak Archive Writer
Why Archive Writer background density follows ANSI/AIIM MS 23 source document guidance rather than COM ranges, and the recommended values.
2 min readEastman Park Micrographics
Tech tip · Document Archiving
Minimum Microfilm Resolution Formula
Minimum acceptable microfilm resolution equals the camera's minimum lines/mm divided by its reduction ratio, for planetary and rotary cameras.
1 min readEastman Park Micrographics
Tech tip · Document Archiving
EPM Tech Tip 079: Cleaning and Maintaining a Densitometer
Key practices for keeping a lab densitometer accurate: leaving it powered on, weekly calibration and careful cleaning of the reflector and viewer.
1 min readEastman Park Micrographics
Tech tip · Document Archiving
Document and Photograph Preservation Dictionary
Plain-language glossary of common terms in the preservation and storage of photographs, microfilm and archival materials.
3 min readEastman Park Micrographics
Tech tip · Document Archiving
Using a Hydrometer to Control Processor Chemistry
How to measure developer and fixer specific gravity with a hydrometer in deep tank processors, with EPM target values and a recommended hydrometer.
1 min readEastman Park Micrographics
Tech tip · Document Archiving
EPM Tech Tip 066: Density, Contrast and the 1.00 Density Aim
Why 1.00 is the density aim for microfilm processors and cameras, with a review of the characteristic curve, contrast, density and exposure.
2 min readEastman Park Micrographics
Tech tip · Document Archiving
Why a Photographic Resolution Target Is Not Suitable for Scanning
Micrographic control targets are designed for photography, not scanning; scanning them causes digital aliasing, so use document scanning targets.
1 min readEastman Park Micrographics