What was George Eastman's key contribution to the evolution of the box camera?

Answer

The integration of a box camera with roll film and a scalable business model

George Eastman transformed photography by shifting away from individual glass plates toward a flexible medium known as roll film. By combining this innovation with a business model where the manufacturer handled the film processing, he turned the camera into a simple, accessible consumer product rather than a complex tool requiring specialized knowledge and chemical expertise.

What was George Eastman's key contribution to the evolution of the box camera?
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