Hunt, Robert, 1807-1887, author, Contained in (work): Hunt, Robert, 1807-1887. Manual of photography · London ; Glasgow : Richard Griffin and Company · leaf 23
which throws the image on a semitransparent table. Fig. 19 is a section of one form of such an instrument : a a represents the box, in one end of which is fixed the lens b. The lenticular image falls on the mirror c, placed at such an angle that it is reflected up to the plate of ground-glass d. e… … through the glass table Tig- 19. d so far reduce their intensity, that the action on photographic agents is slow. A great variety of these instruments have been introduced to the notice of students of the art of photography. Fig. 20. Fig 21. It is conceived, therefore, that a few examples of…
Photography
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