Chinese lens adapter manufacturer Kipon has said it is producing a new model that will allow Canon EF lenses to fit on Sony E-mount mirrorless bodies while maintaining their AF functionality. The Kipon EF-S/E AF ND lens adapter also comes provided with a slot-in four-stop graduated neutral density filter that can be fitted into the body of the ring. Sitting between the optics and the camera, the filter will be protected from stray light and in theory will remain clean, so it should deliver better image quality than had the same filter been fitted over the front of the lens.

The company has not released very much detail about the forthcoming adapter, but it does promise that the phase detection AF system will operate at 'high speed'. Perhaps significantly, the company is showing a picture of the adapter alongside a pair of slot-in filters, so we might hope that other filters will become available at a later date.

The Kipon EF-S/E AF ND adapter will go on sale from 15th March 2016, and will cost $428.

For more information visit the Kipon website.