https://www.youtube.com/watch?v=biYugrJb45k TTartisan 7.5m f/2 at Amazon, TTartisan, Pergear
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.