Great improvements have recently been made in GUNDLACH Lenses, so that the Rapid Rectigraphic and Perigraphic are now composed of two APLANATIC TRIPLETS of a novel form. Producing a degree of Optical Superiority and Flatness of Fiewld which has not been attained heretofore in Photographic lenses.

The Triplets are of different focal power, and, being perfectly aplanatic, they produce perfect pictures by themselves. Thus the new lenses actually consist of three objectives, which produce images differing in size as 2 to 3 to 4.

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2003-01-06 00:00:00