Chevalier lens

Chevalier lens

[shə′val·yā ‚lenz]
(optics)
A type of magnifying lens composed of an achromatic negative lens combined with a distant collecting front lens; a magnifying power up to 10X with an object distance up to 3 inches (7.62 centimeters) can be obtained.
References in periodicals archive ?
With a design based on the Chevalier lens made for Louis Daguerre's camera, the Lomography Art Achromat 64mm f/2.9 lens integrates the Waterhouse Aperture Plate system that lends the ability for a wide variety of bokeh, and the lens itself can focus razor sharp, or silky soft, for depicting pictorialism in a style that is reminiscent of Edward Steichen's photographic works.
The reasons why photography never ceases to amaze us
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