Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 57
ob-scurse it was very difficult to obtain aphotographic image so perfect as that seenon the ground glass; and it was only nowand then, and as if by accident, that goodpictures could be produced. I soon recognized that anomaly, and im- agined that it was owing to some errors inthe respective… … Not being able to assign another reasonfor the errors, I constructed a cameraobscura in which the ground glass and theplate were exactly placed in the sameframe. Jn doing so, I hoped to avoid theleast error or deviation. But to my sur-prise the more correct I was in my adjust-ment, the less I could…
Photography · Art and photography
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