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Photographic Technology Supplement

Simple Tests for Projection Lenses

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Pages 306-308 | Received 12 Jul 1974, Published online: 23 Jul 2016
 

Abstract

The construction of some simple test slides, and their use in the visual assessment of the aberrations of projection lensos, is descnbed here. The kinds of aberration, and their magnitudes, if significant in the visual image can be determined readily.

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