ISO 100 color reversal respool identified by ILFOCOLOR as Eastman 5294.
Process
E-6
Catalog formats
35mm
Generation
Not established in this record
DOCUMENTS
Underlying-stock reference
STOCK RELATIONSHIP
Manufacturer-confirmed base
RESOLUTION
Base-stock estimate
DOCUMENTS & EDITIONS
Original Technical Sheets
ILFORD Japan identifies Eastman 5294 as the base film. The Kodak sheet is underlying-stock guidance; coating-generation equivalence is not established.
technical data • 4 PAGES
KODAK EKTACHROME 100D 5294/7294 Technical Information
Resolution content: MTF. Frequency axis supplies R at a selected response threshold; extracted values are approximate.
Eastman Kodak Company · Checked 2026-10-02. Manufacturer-hosted.
The title retains the document edition where identified. Research check dates are not publication dates. Consult the PDF for printed revision and process conditions.
Official video links Chrome to Ektachrome with different perforations/DX/packaging. It does not speak 5294 or document exact revision identity; current catalog omits Chrome. E100 and 100D must remain distinct candidate sheets.
Still needed: Obtain a brand-issued exact product/coating crosswalk or inspect a documented, dated retail roll and base-stock control.
A solid connection establishes the stated relationship, such as a respool or family variant. It does not establish unchanged resolution, processing or coating generation. Dashed connections retain the identity uncertainty.
Results below use a 36 × 24 mm image area and ideal two-sample spatial sampling. Approximate graph readings retain their source process; a color-layer envelope is not an uncertainty interval.
Base-stock estimate
Approximate MTF50
~2.4–7.3 MP
26.6–46.0 cycles/mm · 36 × 24 mm
Manufacturer plot conditions; see full source page.
Japanese supplier identifies Eastman 5294; this is base-stock guidance for the retail respool.
Original unit: cycles/mm. Spatial frequency from the labeled MTF axis.
Derivation: graph digitized raster single layer. Formal uncertainty is not established for digitized curves.
Other published layer curves end above the 10% response threshold. No complete MTF10 envelope can be computed.
Inspect annotated chart excerpts
Audit excerpts show approximate threshold readings across several source films. Follow the source-page link for this film’s complete axes, process and legend.
Regional first-party page explicitly identifies Eastman 5294. Base-stock technical guidance is not an independently measured retail respool.
Historical editions, coating revisions, development and retail batches retain their own scope. Research supplements do not change the main color-film catalog.
