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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

DIN ISO 517
Photography - Apertures and related properties pertaining to photographic lenses - Designations and measurements (ISO 517:2008)

Title (German)

Photographie - Öffnungsverhältnisse und verwandte Größen bei Photoobjektiven - Bezeichnungen und Messungen (ISO 517:2008)

Responsible national committee

NA 027-01-02-01 AK - General optical test methods

Edition 2009-05

Original language German

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Table of contents

PDF (DE)

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

DIN ISO 517 Photography - Apertures and related properties pertaining to photographic lenses - Designations and measurements (ISO 517:2008)

Responsible national committee

Lisa Henigin

Want to learn more?

DIN ISO 517
Photography - Apertures and related properties pertaining to photographic lenses - Designations and measurements (ISO 517:2008)