Sony SEL1635GM 16-35mm f/2.8-22 Zoom Camera Lens, Black and Circular Polarizer Lens - 82 mm

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 Circular polarizer--one of the most popular special-effect filters Deepens the intensity of blue skies; reduces or eliminates glare Multi-coating reduces reflection