Luminous Transmittance Variation Class
Luminous Transmittance Variation is concerned with how consistently the auto-darkening function of the lens works. There are three Variation Classes that help you describe the quality of the lens in terms of its auto-darkening function. If you have any questions or need a product recommendation, do not hesitate to contact our customer support team on 020 7501 0594 or via our Contact Us page.
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