In sports photography, one often needs a long telephoto lens with a large aperture. As a designer, you will work with engineers to design some new lens.“ (i) Suppose you want to have an 500mm lens with aperture f/4. Calculate the required iris diameter. Round your answer to the nearest integer and state its unit. “ |(ii) Suppose you want to have a 700mm lens with a surface area of 12271.8463mm². Calculate the f-number. Correct your answer to 2_decimal places.
In sports photography, one often needs a long telephoto lens with a large aperture. As a designer, you will work with engineers to design some new lens.“ (i) Suppose you want to have an 500mm lens with aperture f/4. Calculate the required iris diameter. Round your answer to the nearest integer and state its unit. “ |(ii) Suppose you want to have a 700mm lens with a surface area of 12271.8463mm². Calculate the f-number. Correct your answer to 2_decimal places.
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