Perhaps the most versatile lens you can buy. Sold by the original owner in perfect condition.

Here are some technical specs.

• 50 line pairs/mm resolving power
• XA (extreme aspherical) elements with 0.01 micron surface precision
• Constant F2.8 max aperture
• Natural, lifelike defocused bokeh
• 9-blade circular aperture
• Direct Drive SSM
• Nano AR coating
• Dust and moisture resistant