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          To meet this new call for finer and finer photographic apparatus, the Kodak organization has introduced a precision production technic on a scale new to photographic manufacturing. This technic combines two complementing elements: the work of craftsmen of such caliber that their manual operations are the result of thorough knowledge of mathematics, engineering, and materials--plus the almost incredible accuracy of modern precision machines and machine tools. Eliminating both  
..... the narrower scope possible with machine production, and the variation inevitable in individual craftsmanship, this new technic logically combines the valuable features of both methods to produce results of a standard not previously possible. First result of this technic was the famous Cine Kodak Special, which set a new high standard in the amateur motion-picture camera field.

And now the Kodak Ektra...
        You, your fellow advanced photographers, and contemporary photography generally, wrote the Ektra's specifications. Such a camera should have, first, a system of related interchangeable lenses, and an integral, accurate method of determining the field of view as it varied with the different lenses. The lenses themselves should incorporate the latest advances ill optical design, materials, and processes, and be superior to any existing lenses. With such wide-aperture lenses, there was need for a coupled rangefinder that would be critically accurate and usable under a wide range of conditions. This interchangeability of lenses implied a focal plane shutter-if possible, more accurate and dependable in performance than earlier ones Furthermore, interchangeable lenses

  
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