At its Photokina 2018 presentation, Fujifilm took a moment to tease an extreme addition to its X-Mount series of lenses: the XF33mm F1 R. As its name suggests, this is a 33mm-equivalent prime lens with a maximum aperture of f/1 and autofocus capabilities, which makes it a first of its kind.

from https://www.theverge.com/2018/9/25/17900324/fujifilm-f1-autofocus-lens-mirrorless-photokina-2018
https://cdn.vox-cdn.com/uploads/chorus_image/image/61533001/fujif1_vlad.0.jpg