9 public-domain matches
Photographic Lenses
Steinheil - Lenses for Photographic Purposes, British Patent 12949 of 1895
IS 9916: Distance Scale Markings of Photographic Lenses
Optics of Photography.--On a Self-Acting Focus-Equalizer, or the Means of Producing the Differential Movement of the Two Lenses of a Photographic Optical Combination, Which Is Capable, during the Exposure, of Bringing Consecutively all the Planes of a Solid Figure into Focus, without Altering the Size of the Various Images Superposed
On the Method of Examination of Photographic Lenses at the Kew Observatory
Photographic Chart of the Heavens to Argelander's scale 1° = 20 mm., with special reference to the Milky Way. By J. Franklin-Adams; with description of Lenses and Mounts
Photographic lenses
