An F2.8 Telephoto Zoom Like No Other<br>The most advanced technology available has been applied in the G Master series, further refining acclaimed Sony G Lens performance. This model combines refined G Lens bokeh with new levels of resolution in an outstanding constant F2.8 telephoto zoom that offers unsurpassed rendering, blazing AF, and extraordinary image stabilization performance.<br><br>Fast AF Optimized For Stills And Video<br>Two heavy focus groups are rapidly and precisely positioned by separate actuators: a powerful ring SSM (Super Sonic wave Motor) actuator for the front group, and a double linear motor actuator for the rear group. Improved positioning precision works with real-time feedback from multiple position sensors to allow the body's AF system to operate at full capacity.<br><br>11 Blades For Luscious Bokeh<br>Sony's circular aperture design has traditionally employed up to 9 blades, but this lens incorporates an 11-blade circular aperture that takes bokeh quality to new levels of smooth beauty with natural looking highlights.<br><br>Stabilized For Sharp, Blur-Free Images<br>High-performance image stabilization is built right into the lens for sharp, blur-free images with a wide range of subjects. The heavy stabilization lens is driven by a linear motor for fast, precise stabilization. 5-axis image stabilization becomes available when used with ? series bodies that feature built-in image stabilization.<br><br>Natural Images Without Spurious Color<br>Chromatic aberration that can be a problem in telephoto lenses is thoroughly suppressed by the use of four ED (Extra-low-Dispersion) glass elements and two Super ED glass elements. Color bleeding is banished so the subject can be captured with maximum sharpness.