I stumbled upon a youtube video from "make art now" ,he was showing the new "DJI LiDAR 3D focus system". , Which can be used to give vintage lens "autofocus" ability . So we can get the oldest and unique Lenses and use it for daily work or fun ,same way we use a lens with auto focus ! .it seems interesting to me and i thought it will be useful for everyone here , who likes some specific vintage lens but wasn't buying it because it doesn't have auto focus ! .