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This lens is still one of the fastest 300mm lenses ever made. It’s sharp even wide open, and bokeh is very smooth, giving you incredible separation between subject and background. The lens was modified by Century Precision Optics, with a all new metalwork for the focus and iris section. It now has proper hard stops, proper focus marks, and a new 18-blade iris.

NOTE: The lens is very large, with a huge front element. It is not matte box comaptible.