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NA 027

DIN Standards Committee Optics and Precision Mechanics

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Standards [Withdrawn]

DIN 4521
Lenses for shooting and projection; focal distance, relative aperture

Title (German)

Aufnahme- und Projektionsobjektive; Brennweite, Relative Öffnung

Responsible national committee

NA 027-01-02 AA - Fundamental standards for optics  

Edition 1942-01
Original language German
Price On Request
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Table of contents

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