Overview
ISO 1007:2000 - Photography - 135-size film and magazine - Specifications defines mechanical, electrical and identification requirements for 135‑size (35 mm) cut film and daylight-loading magazines. The standard covers film dimensions, latent‑image frame numbering and digital bar-codes (DX system), magazine dimensions and bar‑codes, camera auto‑sensing areas, an information panel visible through camera windows, and mechanical strength and handling limits such as film pull‑out force and film‑spool attachment strength. It does not apply to bulk 35 mm film for reloading, reloadable magazines, or single‑use camera film.
ISO 1007 includes normative and informative annexes:
- Annex A (normative) - assignment of DX numbers
- Annex B, C (informative) - test methods and historical/design notes
Measurement conditions are specified (manufacture-time dimensions measured at 23 ± 2 °C and 50 ± 5 % RH; instrument calibration at 20 °C per ISO 1 and ISO 554).
Key Topics
- Film dimensions and leader/trailer/tongue geometry: standardized cut lengths (examples given for 12, 24 and 36 exposures), corner radii and critical tolerances to ensure reliable loading and transport.
- Perforation and cutting tolerances: precise positions and offsets for sprocket perforations used by camera transport systems.
- Latent‑image frame numbering and bar‑codes: specifications for dual‑track and optional single‑track latent‑image digital bar‑codes that encode the film’s DX number and frame numbering.
- Magazine dimensions and magazine bar‑code: standardized magazine size for daylight‑loading cameras and a barcode that encodes DX number plus number of exposures.
- Camera auto‑sensing areas (DX contacts): electrical and dimensional layout that allows appropriately designed cameras to read film speed (ISO/exposure index), number of exposures, and recommended exposure latitude.
- Information panel: visible film ID, speed and exposures through camera back windows.
- Mechanical limits: film pull‑out force and film‑spool attachment strength requirements to prevent damage during handling and transport.
Applications / Who Uses It
- Film manufacturers - to produce 135 film and magazines that are compatible with standardized cameras and photofinishing equipment.
- Camera and magazine designers - to implement auto‑sensing contacts, magazine fit, and window displays.
- Photofinishing labs and equipment makers - to read latent‑image barcodes and ensure accurate processing.
- Quality assurance and test labs - to verify dimensions, barcode encoding and mechanical performance per specified measurement conditions.
- Standards and procurement teams - to specify compliant 135‑size film products.
Related Standards
- ISO 1:1975 (reference temperature for length measurements)
- ISO 554:1976 (standard atmospheres for conditioning/testing)
Keywords: ISO 1007, 135-size film, 35 mm film, DX number, latent-image bar-code, magazine bar-code, camera auto-sensing, film pull-out force, photography standards.