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The five Seidel sums may be calculated by tracing a paraxial ray from object to image in the lens and by tracing also a paraxial principal ray from your centre with the aperture halt outward in equally directions towards the thing and picture, respectively. The angle of incidence i You https://jaspergmklj.blogofchange.com/30402494/the-5-second-trick-for-waterproof-speaker

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