Cosina’s New Voigtländer 40mm f/2 Lens

credits: Cosina

Cosina has announced the Voigtländer Septon 40mm f/2 Aspherical for full-frame Sony E and Nikon Z mirrorless cameras. It is a relatively compact manual-focus prime, especially in E-mount form, where it measures 30mm in length and weighs 165 grams. The Nikon Z version is slightly larger at 32mm and 205 grams. Both versions use 52mm filters and Cosina continues its habit of giving each mount a slightly different exterior design. The Sony version has a diamond-pattern focus ring, while the Nikon version uses a scalloped grip.

The optical design consists of seven elements in six groups and includes an aspherical element. Cosina refers to the layout as an “Orthometer” design, meant to maintain good sharpness across the frame, even at the maximum f/2 aperture. The lens uses a 10-blade diaphragm, which should help keep out-of-focus highlights reasonably round when stopped down. Minimum focus distance is 0.3 meters, giving a maximum magnification of 1:5.3.

Since this is a fully manual lens, handling is an important part. Cosina says the all-metal helicoid has been carefully machined and tuned for smooth focus movement with consistent resistance. In Japan, the suggested retail price is 85,000 yen (around $555 at current exchange rates), with availability expected in March. International pricing may vary slightly depending on region.