Cosina has expanded the availability of its Voigtländer Portrait Heliar 75mm f/1.8 to include Canon RF and Nikon Z mounts, following its earlier release for Sony E. The lens remains a manual-focus, medium-telephoto prime for full-frame cameras and retains its defining feature: a dedicated spherical aberration control ring that allows users to alter the rendering characteristics of the image.

Such additional control ring enables photographers to intentionally under- or over-correct spherical aberration, changing the appearance of sharpness and out-of-focus areas without adjusting aperture. When set toward under-correction, the lens produces a softer rendering with increased glow in highlights and smoother background blur, though this setting may introduce stronger vignetting and flare. When adjusted toward over-correction, the image becomes more defined and contrast increases, while out-of-focus highlights take on a more structured, sometimes bubble-like appearance. Adjusting the aberration ring shifts the plane of focus and can influence effective exposure, requiring refocusing and potential exposure compensation.

Optically, the RF and Z versions share the same construction as the E-mount model, using six elements in three groups and a nine-blade diaphragm. The lens focuses down to 0.7 meters and offers a maximum reproduction ratio of 1:7.4. Both new mounts incorporate electronic contacts to transmit EXIF data and support in-body image stabilization and focus assist functions, despite the lens being fully manual in operation.

Physical differences exist between mounts. The Canon RF version features a diamond-pattern knurled focus ring similar to the Sony variant and weighs approximately 570 grams, while the Nikon Z version adopts a straight-groove ring design with yellow markings and weighs about 580 grams. All versions measure roughly 90mm in length and accept 62mm front filters.

Here are some sample pictures, courtesy of Cosina: