YAMAMOTO MASAO COLOTTYPE

Yamamoto Masao (山本昌男), born in 1957 in the city of Gamagori in Japan's Aichi Prefecture, is a Japanese photographer known for his small images, which attempts to individualize photographs as unique objects.

Yamamoto began his art studies as a painter, studying oil painting under Goro Saito in his hometown. Currently, he uses photography to capture images that can evoke memories. He blurs the line between painting and photography by experimenting with printed surfaces. He dyes and turns (with tea), paints and tears his photographs. His subjects include still lifes, nudes, and landscapes. He also makes art installations with his small photographs to show how each image is part of a larger reality.

The collotype was a photomechanical printing procedure (in graphic arts workshops). Conceived in 1856 by Louis Alphonse Poitevin , it was later perfected by Joseph Albert , for which reason it also spread under the name of Albertipo .

On a matrix made up of a glass plate, a layer of photosensitive emulsion made up of bichromate gelatin was spread, which was subjected to firing, and then impressed by contact with the original photographic negative. The gelatin became more insoluble in the transparent areas thereof. In this way the ink was more easily absorbed in those transparent areas.

This procedure allowed a limited number of 500 copies to be thrown ; because the gelatin deteriorated during the printing process, and sharpness was lost.

Among the photographers who used this system for print runs, Alfred Stieglitz can be mentioned.