Canon Zoom Lens (newer version) New FD 100-300mm f/5.6.This lens has a single push/pull type zoom and focus ring, and employs the mechanical compensat

Canon Zoom Lens (newer version) New FD 100-300mm f/5.6.This lens has a single push/pull type zoom and focus ring, and employs the mechanical compensation system. Though its zoom ratio is 3X, it is compactly designed, and easy to operate.Its closest focusing distance is 2 m (6.6 ft.), which is an improvement over the 2.5 m (8 ft.) minimum focusing distance for the F 85 - 300 mm f/4.5 lens. Aberration correction is maintained by increasing the focal magnification (decreasing the overall length) and by using a new compensation lens system, as well as with a special correction lens in the second group of the relay. The focusing ring has a different textured than earlier version, please adjust your pricing for the new and older version when trying to source for one in the used market.