the first completely abstract kind of photograph, it is composed of kaleidoscopic repetitions of forms achieved by photographing objects through a triangular arrangement of three mirrors. Alvin Langdon Coburn, a member of the Photo-Secession group and a pioneer in nonobjective photography, invented vortography in 1917 and remained the principal advocate and practitioner of the technique. Coburn's experiments with the technique lasted only a short while.
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