The Dallmeyer 3D Soft Focus Portrait is a British-made portrait lens from the long-established London optical house J.H. Dallmeyer, designed specifically for soft-focus portraiture. It belongs to the classic era of dedicated portrait optics, prized by photographers seeking a controlled diffusion effect on skin and a smooth rendering of out-of-focus areas rather than clinical sharpness.

Evidence on what a Dallmeyer 3D Soft Focus Portrait is worth in today's UK market is thin: a single tracked example sold for £375 at recent UK auction (April 2025), and that hammer figure is wholesale, taken before buyer's and seller's commission. With only one verified data point the price acts as a guide rather than a firm market value, and clean, complete copies in working flange mounts can sell for materially more when condition and provenance are right.