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(atan((1080/1920)*1.33*(tan(85.57degrees/2)))/atan((1080/1920)*1.33*(tan(26degrees/2))))/(0.9*0.8)
(atan((1080/1920)*1.33*(tan(85.57degrees/2)))/atan((1080/1920)*1.33*(tan(26degrees/2))))/(0.9*0.8)
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