| Key Features
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Three aspherical lens elements minimize spherical aberration, astigmatism and sagittal comma flare
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Use of two SLD (Special Low Dispersion) elements results in excellent correction of chromatic aberration (the propensity of different colors of light to focus before and after the film plane)
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DF
(dual focus) mechanism is incorporated, making it easy to hold the lens
during AF while providing a wide focus ring for easy manual focus |
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Non-rotating lens front allows the use of a flower shaped "Perfect Hood" and makes employing polarizing filters a snap |
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