Overview

The Pentax smc DA 70mm F2.4 AL Limited is a compact pancake lens for APS-C Pentax DSLRs, offering a 105mm equivalent focal length ideal for portraits. Optically, it delivers sharp centers wide open with minor corner softness, improving by f/4 and peaking at f/5.6. Chromatic aberration is low but noticeable in corners. Vignetting is mild, under half a stop at wide apertures. Build quality is excellent with a metal shell and smooth focus ring (OpticalLimits). AF uses a screw-drive, which is moderately noisy but fast on compatible bodies (OpticalLimits). It suits Pentax users seeking a high-quality, portable short telephoto lens.