Designed and built to the strictest precision standards, this lens offers magnificent imaging performance throughout the frame, right up to its widest F1.4 aperture setting. An XA (extreme aspherical) element with 0.01 micron surface precision contributes to previously unachievable resolution and stunning bokeh for new expressive potential. Three ED glass elements support the lens’s outstanding resolving power by suppressing chromatic aberration and minimizing artificial coloration throughout its aperture range. Two position sensors enhance the accuracy of an SSM (Super Sonic wave Motor) drive system for autofocus performance that fully supports the lens’s high-resolution capability.
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