FED-STD-H28/18C, FEDERAL STANDARD: SCREW-THREAD STANDARDS FOR FEDERAL SERVICES - SECTION 18 - PHOTOGRAPHIC EQUIPMENT THREADS (01-NOV-2019)
FED-STD-H28/18C, FEDERAL STANDARD:
SCREW-THREAD STANDARDS FOR FEDERAL SERVICES
- SECTION 18 - PHOTOGRAPHIC EQUIPMENT THREADS (01-NOV-2019)., This section describes the screw threads commonly used on photographic equipment in order to promote interchangeable connections.