Glass positive:- Franklin-Adams astro-camera

Made:: 1929 in Cape Town

maker:: Hinton and Co.

Glass positive:- Franklin-Adams astro-camera, this shows the instrument with which the photographs were obtained for the Franklin-Adams chart, the lens was a Cooke Triplet of 10-in, aperture, and 45-in, focal length, a few of the 206 photographs obtained are also exhibited, each plate was 15 inches square, and the complete series affords a photographic representation of the whole sky, 15" x 15"

Details

Category:: Astronomy

Object Number:: 1929-768

Materials:: glass

type:: black-and-white transparencies, astronomical instruments and refracting telescopes

credit:: Hinton and Co.

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