Assertion: aperture | /r/HasProperty | seen through the front of the lens
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text: Typically, the constant maximum aperture lenses are larger, heavier, and more expensive than their variable maximum aperture counterparts, as having a wider aperture at the long end of a zoom lens requires a larger entrance pupil (the aperture as seen through the front of the lens), which means a physically larger aperture and/or greater magnification at the front of the lens (which usually means big front elements).