Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 286
aper is therefore retained,with a few verbal alterations only. The extreme expense of the apparatusand plate as supplied by the patentee, in-duced me, in the very first stage of my ex-periments, to endeavor to construct formyself a set which should be equally as-effective, and less expensive. TO BE… … than tance much HIS is at a relative dis-tance behind the lens andalways greater than itsprincipal focus whichforms the image of ob-jects placed before its vi-sual axis. All know thatthis image is inverted, and general-ly small. Although an image maybe formed, it is necessary that theobject…
Photography · Art and photography
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