Bokeh is often one of the key considerations for photographers picking out a new camera lens, but one upcoming lens from Voigtlander wants to give photographers control over the way that bokeh looks. An upcoming Voigtlander Portrait Heliar 75mm f/1.8 lens includes a spherical convergence control ring that will adjust the look of the out-of-focus areas of the image from a soft focus type look to hard-edged bubble bokeh. The company explains that the new bokeh control gives photographers more control over the look of the images, but comes at the cost of increased chromatic aberrations.
Teased during a YouTube video on February 25, the Voigtlander 75mm f/1.8 for E-mount uses the unusual spherical convergence control ring to give photographers the ability to customize how the bokeh should look. The video explains that, on one side of the ring, the bokeh appears soft. On the opposite side of the control ring, the bokeh is overcorrected, giving the out-of-focus light dots a hard edge that’s often referred to as bubble bokeh or onion ring bokeh.
