Duplicate of Pentax FA 77mm f/1.8 Limited — same as ID 3968 with original SMC coating.
The Pentax SMC FA 77mm f/1.8 Limited is one of the most celebrated lenses in the Pentax system, forming the telephoto member of the acclaimed FA Limited trilogy alongside the 31mm f/1.8 and 43mm f/1.9. Introduced in 1999, the FA designation indicates full-frame coverage with autofocus capability.
The lens delivers 77mm at f/1.8 maximum aperture with Pentax's Super Multi-Coating (SMC), rounded aperture blades for smooth out-of-focus rendering, and a compact metal barrel construction typical of the Limited series. Autofocus operates via the camera body's screw-drive motor.
The 77mm focal length provides a natural portrait compression equivalent. The Limited series lenses are distinctive for their combination of compact size, premium build quality, and characteristic rendering — particularly the smooth, circular bokeh. The FA 77mm is widely regarded as Pentax's finest portrait lens and commands a premium in the used market.
Test autofocus accuracy carefully, as screw-drive AF performance depends on the camera body's motor speed and calibration. Inspect aperture blades for oil contamination, which can affect the rounded bokeh rendering. Check the focus ring for smooth, precise operation. Examine the compact metal barrel for dents or damage.