Term - Amphitype

Amphitype

Mid 19th century photographic process introduced in 1851 52 by Frederick Scott Archer and Peter Fry. It used weak collodion negatives which were bleached and backed by a black background which produced the effect of a positive image. 19th Century process based on an underexposed albumen on glass negative. This was viewed by reflected light against a black background to give a positive image similar to a ambrotype.

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