Flare in Schmidt Cameras

Abstract
The flare pattern obtained when a heavy over-exposure is made with a Schmidt camera on a bright object well off-axis consists of a secondary image, halos about the primary and secondary images and an annulus with these images at extremities of a diameter. The bearing of this flare pattern on the design of a Schmidt camera is discussed and it is shown how one may test a Schmidt camera by the use of its flare pattern.

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