The covering power of the W-series Nikkors is an ample 70-73� when stopped down. Lens construction of six elements in four groups in the series gives these lenses an outstanding degree of freedom from distortion, field curvature and chromatic aberration. Nikon Integrated Coating assures high contrast and overall faithful color rendition. The W-series lenses are recommended f�r a variety of subjects, including landscapes, portraiture, architecture and table-top photography.