Superseded
Standard
Historical
DIN 4521:1973-01
Lenses for shooting and projection - Focal distance, relative aperture
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Summary
Aufnahme- und Projektionsobjektive - Brennweite, Relative Öffnung
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 01/01/1973 |
| Page Count | 8 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/01/1973
Superseded
Historical