ForsideBøgerA Manual Of Photography

A Manual Of Photography

Forfatter: Robert Hunt

År: 1853

Forlag: John Joseph Griffin & Co.

Sted: London

Udgave: 3

Sider: 370

UDK: 77.02 Hun

Third Edition, Enlarged

Illustrated by Numerous Engrabings

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50 HISTORY OF PHOTOGRAPHY. sion. 60 grammes of hyposulphite are sufficient for 1 quart of distilled water.” The elaborate nature of this process is a barrier against its use, since the results are not at al1 superior to those obtained by the ordinary daguerreotype, as it is now practised, and the labour to be expended on the preparation infinitely greater.