Optics and photonics. Camera lenses. Measurement of ISO spectral transmittance Ingestion-build-95349 BS EN 609-1 also specifies

BS EN 609-1 also specifies the type of information on safe working practices to be provided by the manufacturer

which can be useful for various industries that use refractory products

due to variations in time and origin of test materials and ingredients and the influence of the subjective judgment of test operators

Terms in non-ISO languages have been added in Annex B

IEC 61189 relates to testing methods for materials or component robustness for printed board assemblies

Optics and photonics. Camera lenses. Measurement of ISO spectral transmittance Ingestion-build-95349 BS EN 609-1 also specifies1 Scope This document specifies a method for measuring the spectral transmittance of camera lenses. It describes particular conditions for measuring the axial spectral transmittance, over a wavelength range from 350 nm to 700 nm, of camera lenses which are intended to be used mainly for taking pictures of very distant objects. If the spectral transmittance values are used exclusively for the calculation of the ISO colour contribution index (see ISO