Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 189
illu-mination in the direction of the condensing lenses, but thenet result is practically no better than from carbon set-tings illustrated in Figs. 100 and 103. This statement may seem unreasonable to many, butwhen the reader takes into account the point that the con-densing lenses of a projector…
Motion picture theaters · Electric lighting
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