Snelling, Henry Hunt, 1816-1897 · [New York : W.B. Smith] · leaf 258
ctly at the point ofthe visual focus, you draw a proof whichmust be developed without disturbing thecamera. Then mark upon the tube at thegroove of the object-glass the length of thefocus; then the difference discovered in thedistance of this mark for restoring to thefocus the object which has… … WING to the delay inpublishing the Octobernumber to which wehave been subjected, weare enabled to lay beforeour readers the followingof Mr. Hill. To sayof it, we consider it notonly very iojudicious at this time,but most unjust to the great bodyof daguerreotypists in this country.Nearly two years…
Photography · Art and photography
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