Optikus
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The Kosmos Optikus was an experimental kit made by the publisher of the German Kosmos nature magazine. It encouraged young people to learn about optics through practical experiments. The experiments included the construction of a telescope (enlargement 15×), a microscope (enlargement 35×), a single lens reflex camera, a tele lens, and the adaption of the camera to the telescope or to the microscope of the kit Kosmos Mikromann.
The Optikus SLR used Agfa's Rapid film. It had a 1:5,6 71,4mm two elements lens (probably achromatic lens). It had a waist level reflex finder, usable with the accessory viewfinder loupe from the kit.
Links
In German :
