- One extra-low dispersion glass element is featured in the lens design to help reduce chromatic aberrations and color fringing for improved clarity and color neutrality.
- Three aspherical elements are incorporated in the lens design to reduce astigmatism, field curvature, coma, and other monochromatic aberrations.
- Rounded seven-blade diaphragm contributes to a pleasing bokeh quality when employing selective focus techniques.
- An internal focus mechanism and linear motor contribute to faster, more responsive system and easier handling.
- Optical SteadyShot image stabilization helps to minimize the appearance of camera shake for sharper imagery when shooting handheld with slower shutter speeds. This stabilization system can be combined with select camera's sensor-shift type image stabilization for more effective control of camera blur.
- Dust- and moisture-sealed design better permits working in inclement conditions and rubberized control rings benefit handling in colder temperatures.