ISO 400 color film sold in 18-exposure rolls; independent emulsion identity is not established.
Process
C-41
Catalog formats
35mm
Generation
Not established in this record
DOCUMENTS
Matching PDF not located
STOCK RELATIONSHIP
Base undisclosed
RESOLUTION
Resolution unavailable
DOCUMENTS & EDITIONS
Original Technical Sheets
Current manufacturer homepage/catalog and exact-product PDF searches checked. Only black-and-white UltraPan development charts were linked; no matching color-film PDF or sufficiently specific manufacturer base-stock identity located.
A matching downloadable PDF was not located in the reviewed sources. Available product-page evidence is listed below.
STOCK FAMILY & ORIGIN
Emulsion Lineage
04 / STOCK FAMILIES
Film stock relationships
Follow a connection to explore another stock.
Established relationship Proposed or unresolved identity
Manufacturer establishes speed/process and an 18-full-frame roll, not the stock. Apollo 18 is distinct from dubblefilm Apollo 400; a half-frame packaging purpose does not identify emulsion.
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 Γ 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.
No product-specific spatial-resolution input is established here. ISO, visible grain and sensitometric curves cannot fill this gap.
INSPECTABLE EVIDENCE
Sources & Audit Trail
Still needed: Obtain a brand-issued exact product/coating crosswalk or inspect a documented, dated retail roll and base-stock control.
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.
Browser shows Apollo 18 as 400-speed C-41 with 18 full-frame exposures; Chrome, Aurora and Psychedelic descriptions absent from this current catalog. Several unrelated black-and-white cards contain inconsistent Aerocolor template captions, so those captions cannot be extended to neighboring products. Product-specific Cine Color 50D/200T/250D/500T headings explicitly identify respooled Kodak VISION3 and ECN-2 processing; all four are marked no longer being produced. Elektra specifically names Kodak Aerocolor IV. These declarations do not extend to Aurora, Apollo 18, Chrome or Psychedelic.
Historical editions, coating revisions, development and retail batches retain their own scope. Research supplements do not change the main color-film catalog.