Supplier identifies respooled Kodak Aerocolor IV. Retail speed and scanning differ from aerial-use guidance.
Process
C-41
Catalog formats
35mm
Generation
Not established in this record
DOCUMENTS
Underlying-stock reference
STOCK RELATIONSHIP
Manufacturer-confirmed respool
RESOLUTION
Base-stock estimate
DOCUMENTS & EDITIONS
Original Technical Sheets
Flic explicitly identifies Elektra as respoolled Kodak Aerocolor IV. The historical aerial sheet is underlying-stock guidance, not an Elektra-specific measurement.
technical data • 6 PAGES
KODAK AEROCOLOR IV Negative Film 2460 Technical Data
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.
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
~1.9–5.2 MP
23.6–38.9 cycles/mm · 36 × 24 mm
Manufacturer plot conditions; see full source page.
Retail C-41 differs from the historical AN-6 aerial-film chart.
Original unit: cycles/mm. Spatial frequency from the labeled MTF axis.
Derivation: graph digitized vector. 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.
Directly fetched 2026-10-02. Current catalog confirms Elektra as Kodak Aerocolor IV and describes Apollo 18. Specific Chrome 100, Aurora 400 and Psychedelic 400 technical sheets were not located; the older URL now returns 404.
Historical editions, coating revisions, development and retail batches retain their own scope. Research supplements do not change the main color-film catalog.
