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Set of apparatus for carrying out 23 basic student experiments in optics. In a robust plastic box with foam inserts molded to the shapes of the items and a transparent lid. The experiments are designed to occupy as little space as possible while remaining clear and easy to perform. Includes comprehensive student and instructor manuals and experiment guides. Contents includes: 2 lenses, focal = +100mm, 1 lens, focal = +50mm, 1 lens, focal = -100mm, 1 lens, focal = +300mm, 1 diaphragm holder, 1 plug-in power supply unit for optical lights, 1 optical light, 1 overlay mask protractor, 1 projection screen/experiment table, 1 optic bench, 2 tea lights, 1 opaque body, 1 single aperture slot, 1 triple aperture slot, 1 colour slide M-Y-C, 1 F diaphragm, 1 flexible mirror, 1 coplanar board, 1 semicircular body, 1 converging lens, 1 diverging lens, 1 right-angled prism, 2 sheets of graph paper, transparent DIN A5, 1 scale. 115 V, 50/60 Hertz.