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  • BSI
    BS 4793:1972 Recommendations for specifying the optical performance of lenses for television cameras
    Edition: 1972
    $266.02
    / user per year

Description of BS 4793:1972 1972

These recommendations are for the specification and assessment of the optical performance of lenses for use with television cameras. These may be either zoom lenses, variable focal length lenses, or single focal length lenses, and they may be required to operate in either black-and-white or colour reproduction systems.

A special feature of these recommendations is that they adopt the optical transfer function (OTF), or more specifically its modulus, the modulation transfer function (MTF), as a method of assessing and specifying image quality.

These recommendations cover the performance of the lens as a complete optical unit but do not deal with the performance of individual component parts. The condition of test must however include any additional glass paths between the lens and the image plane that are required by the optical design, such as may be introduced by colour filters, beam splitting blocks, the face plate of the camera tube, etc.



Covers zoom lenses, variable focal length lenses and single focal length lenses, used in either black-and-white or colour reproduction systems. These recommendations adopt the optical transfer function (OTF), or more specifically its modulus, the modulation transfer function (MTF), as the method of assessment and specification of image quality. Covers the performance of lenses as a complete optical unit but does not deal with the performance of individual component parts.

Standard NumberBS 4793:1972
TitleRecommendations for specifying the optical performance of lenses for television cameras
StatusConfirmed
Publication Date1972-05-24
DescriptorsOptical phenomena, Optical instruments, Performance, Lenses, Cameras, Television equipment, Accuracy, Television cameras
ICS37.040.10 Photographic equipment. Projectors
CommitteeCPW/172
ISBN0 580 06788 2
PublisherBSI
Pages12

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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