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The Speed Booster – a New Type of Optical Attachement for Increasing the Speed of Photographic Lenses Brian Caldwell, Caldwell Photographic Inc. and Wilfried Bittner, WB Design 1) Introduction
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Document Date: 2014-02-11 08:41:39
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File Size: 2,93 MB
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The Speed Booster – a New Type of Optical Attachement for Increasing the Speed of Photographic Lenses Brian Caldwell, Caldwell Photographic Inc. and Wilfried Bittner, WB Design 1) Introduction