FAH291H5 Study Guide - Midterm Guide: Oscar Gustave Rejlander, Time And Motion Study, Zoetrope
19 Oct 2016
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Could be adjusted like a viewfinder to allow artists to look at close or distance scenes and simultaneously at a sheet of paper (to trace) Allowed for multiple copies to be made. Trace of previous action rests on retina. James robertson: advanced magic lantern that created rear-screen image projections of ghosts, skeletons. Found that chalk and nitric acid into which silver was dissolved was darkened by sunlight not by exposure from heat or fire. Wanted to preserve camera obscura on something permanent. Developed the first system for making images permanent through the action of light. Discovered that bitumen of judea, a lithographer"s material made from asphalt, was sensitive to light in 1822. Developed solution of petroleum and lavender oil. Now known as fixer and solvent, to expose image. View from his window at le gras. Discovered that vapor from mercury does the trick to shorten exposure time.
