Sigma 15mm F/1.4 DG DN Art Review: Wide, Weird, and Wonderful
petapixel.com
petapixel.com
https://en.wikipedia.org/wiki/Nikkor_13mm_f/5.6
It also reminds me of the Nikkor 8mm fisheye that was used to represent HAL 9000 in 2001.
This is freaking amazing. Modern lens design is fantastic.
my favorite of the latest crop has been a 50mm f/1.4 tilt lens, manual focus of course.