Cooke Varotal Zoom Lens History

Here’s a brief history of earlier Cooke Varotal Zooms from Arthur Warmisham’s first commercially manufactured variable focal (zoom) lens for cinematography (Cooke Varo 40-120mm cine lens for 35mm format), assembled and sold by Bell & Howell. In 1971, Cooke introduced their Varotal 20-100mm, f2.8 / T3.1 Zoom.
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