Sony's FE 70-200mm f/2.8 GM OSS II takes the classic fast zoom and elevates performance to a whole new level. This lens builds upon the best parts of the original and makes them even better while simultaneously reducing weight by 29%—making this lens the lightest in its class. Sony has also given this lens a brand-new AF system that promises up to four times the speed and has made plenty of optical optimizations that will appeal to video shooters, including improvements to focus breathing and focus shift. Whether you shoot portraits, sports, landscapes, or video, the 70-200mm f/2.8 will get the job done. Improved Optical Performance A hallmark of the G Master line is outstanding optical performance with both high sharpness and smooth bokeh. Using a new design, the FE 70-200mm f/2.8 GM OSS II promises corner-to-corner sharpness across the entire zoom range—even when shooting wide open at f/2.8. Along with that, a newly designed 11-blade aperture helps create soft, pleasing bokeh. Fast f/2.8 constant aperture allows users to capture images in dim lighting conditions and with a shallow depth of field. Two ED (extra-low dispersion) and two Super ED elements, including one aspherical ED element, effectively suppress chromatic and spherical aberrations.