Hunt, Robert, 1807-1887, author, Contained in (work): Hunt, Robert, 1807-1887. Manual of photography · London ; Glasgow : Richard Griffin and Company · leaf 133
a single achromatic lens, producing a large image, should be employed for motionless objects, where time is not of consequence. For a building, a statue, or the like, it is not of much consequence whether one Fig. 56. minute or ten may be con- sumed in the operation of obtaining its impression.… … ee- 57. effected by means of a diaphragm of stops, With this adjustment which can be obtained to fit any lens, any sized aperture can be obtained. Fig. 58 shows the double combination of lenses mounted for the purposes of photographic portraiture. The position of the double convex and of the…
Photography
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