Tag Archives: Shark Week

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On this day… Zooming Camera Lenses!

On this day… Zooming Camera Lenses!

On this day in 1947, Dr. Frank Gerard Back demonstrated the first camera with a zoom feature. This feature was made possible by the invention of the “varifocal lens.”  Prior to this invention, photographers were required to move their cameras closer to their object to simulate “zoom.” Dr. Back first showed off his invention at

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