Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 23
which photographs were generallytaken, the distance between the lensesbeing much too short to obtain any reliefof objects on a battlefield. I believe thenext step was the fixing of a camera onthe end of each plane with an arrange-ment for making simultaneous exposuresof the plates. This was not… … Fro. 7. -Showing new work in trench. tion I have indicated. No serious efforthas been made so far. A great dtal of experimenting remainsto be done with filters in conjunctionwith panchromatic and other platessensitive to single colours, and also theuse of goggle filters for the detection…
Lighting
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