Designed to achieve 50 Line pairs/mm resolving power
Two XA (extreme aspherical) elements w/ high surface precision
Constant F2.8 max aperture maintains exposure and Depth of field
Uncompromising G Master design for smooth bokeh and high resolution
11-blade circular aperture contributes to gorgeous bokeh
Constant F2.8 max aperture maintains exposure and depth of field Uncompromising G Master design for smooth bokeh and high resolution 11-blade circular aperture contributes to gorgeous bokeh Two Direct Drive SSM (DDSSM) for fast, quiet, precise focusing Nano AR Coating dramatically reduces flare and ghosting Dust and moisture resistant for robust reliability ED glass w/ multicoating reduces chromatic aberration Instant auto/manual focus selection via a AF/MF switch