Pentax 100mm F/4 SMC Macro K Mount Manual Focus Lens Review

The Pentax 100mm F/4 SMC Macro is a legacy manual focus macro lens designed for K mount film and digital bodies. At 100mm, it offers a comfortable working distance for close-up photography, and the F/4 aperture is typical for older macro designs. This is a used lens available through KEH in bargain condition, priced at $112, which positions it as an affordable entry point for macro work on Pentax systems.

As a manual focus optic from Pentax's SMC lineup, the lens requires hands-on technique and patience, particularly for macro subjects. It will meter and shoot on modern Pentax DSLRs, though features like autofocus and electronic aperture control are absent. The bargain condition grade suggests visible cosmetic wear and potentially some optical marks, so buyers should expect a working tool rather than a pristine collector piece. For budget-conscious Pentax shooters willing to focus manually, it offers classic macro capability at a low entry cost, though those seeking modern performance or pristine optics should look elsewhere.