Description:The demonstration serves as a model of the assembly and function of a telephoto lens attachment. A point source with a small crossarm baffle serves as an object imaged by a sequence of lenses – a 150mm focal length converging lens, a -100mm focal length diverging lens, and a 300mm focal length converging lens, to focus on a distant screen.
Other lens combinations can be available upon request.
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Last modified on Wednesday, 16 September 2020 10:21