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Message: <blockquote data-quote="Eyelight" data-source="post: 396187" data-attributes="member: 24753">If the faster lens is set at the same aperture, yes, the exposure will be the same.  The term faster lens just means the lens has a larger maximum aperture, but any two lenses set at the same aperture will allow the same amount of light to pass.Edited to add:  Clarifying, the aperture itself will be a different size depending on focal length.  That's where f/stops come into play.  The same f/stop on any lens will produce the same amount of light hitting the sensor at the same interval of shutter open.</blockquote>