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<blockquote data-quote="Eyelight" data-source="post: 396211" data-attributes="member: 24753"><p>Faster lenses often have larger objectives in order to pass light thru the larger maximum aperture. As the aperture is stopped down, less of the objective lens is used. So, f/8 passes the same amount of light thru a 1.8 lens as it does thru a 5.6 lens.</p></blockquote><p></p>
[QUOTE="Eyelight, post: 396211, member: 24753"] Faster lenses often have larger objectives in order to pass light thru the larger maximum aperture. As the aperture is stopped down, less of the objective lens is used. So, f/8 passes the same amount of light thru a 1.8 lens as it does thru a 5.6 lens. [/QUOTE]
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