https://www.youtube.com/watch?v=Zy1FoinKKpM Here is a review of an unusual RF-mount lens you can get for $400…
Just announced: New Venus Optics Laowa 17mm f/4 Zero-D Tilt Shift Lens
You can now preorder the new Venus Optics Laowa 17mm f/4 Zero-D Tilt Shift Lens at BHphoto and VenusStore.