The silver sunbeam : a practical and theoretical text-book on sun drawing and photographic printing (1873)
Towler, John, 1811-1889 · New York : E. & H.T. Anthony · leaf 506
468 PHOTOMICROGRAPHY. The great degree of enlargement obtained is the triumph of photomicrography. For obtaining this with clearness, objec- tives must be employed Fig 8. … erally practiced. This method is very attractive, in conse- quence of its success in portraits, but does not succeed so well with photomicrography. The infinite minuteness of the details requires no common precision, the least imper- fections assuming, in the enlargements, extraordinary pro-…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
