Prime By Pentax · pentax-k · Pentax-A
The SMC Pentax-A 20mm F2.8 is a wide-angle prime lens for SLR cameras with the Pentax K mount. Its aperture ring supports the A position, allowing aperture control from the camera body when used with compatible Pentax bodies. As a compact wide-angle lens in the Pentax-A series, it is well suited to landscape and snap photography.