Definition that contains lens system
- camera television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam
- speed the ratio of the focal length to the diameter of a (camera) lens system
- stigmatic pertaining to a lens or lens system free of astigmatism (able to form point images)
- focal ratio the ratio of the focal length to the diameter of a (camera) lens system
- anastigmatic pertaining to a lens or lens system free of astigmatism (able to form point images)
- stop number the ratio of the focal length to the diameter of a (camera) lens system
- achromatic lens a compound lens system that forms an image free from chromatic aberration
- television camera television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam
- compound lens a lens system consisting of two or more lenses on the same axis
- f number the ratio of the focal length to the diameter of a (camera) lens system