Pentax SMC Pentax 67 120mm f/3.5 Soft

Soft-focus lens for the Pentax 67 system — a deliberate-aberration design where spherical aberration is intentionally retained rather than corrected, producing a glowing-highlight rendering historically associated with portraiture and pictorialist landscape. The "Soft" designation distinguishes it from the system's other sharp-focus normal-tele lenses.

The lens has three discrete soft-focus settings (typically marked 1/2/3) that progressively increase the spherical aberration. Setting "0" (or fully closed) renders nearly normally; setting "3" produces strong glow around highlights. Stopping down gradually reduces the soft-focus effect — at f/16 and smaller, the lens behaves much like a conventional normal lens.

In 35mm-equivalent terms, 120mm on 6×7 corresponds to roughly 60mm full-frame — short-tele / long-normal, which is classic portrait length. Used primarily for portraiture (especially women's portraits in the period when soft-focus was a fashionable look), pictorialist landscape, and any photography where the dreamy glowing-highlight rendering is the creative goal.

Mounts on the inner bayonet; 67mm filter thread. Scarce on the used market — soft-focus lenses are a niche specialty even within the Pentax 67 community, and most production-run examples have stayed with their original buyers.