This is a round fisheye lens with barrel distortion. It takes a few tries to get used to it. Photocopy or LED TV Skeen is a try. Framing the frame by manipulating the placement and using the "Focus Magnifier" on my Sony A6000 works well to get those curved lines in an interesting part of the frame.
Canon EOS SLR Camera Lens EF 24-105mm f/4 L IS USM
124 Review
Nikon 35mm f/1.8G Auto Focus Lens for Nikon DSLR Cameras - Black (Model 2183)
125 Review
Canon EF 40mm f/2.8 STM Lens - Fixed Black (6310B002) for US Cameras
76 Review
Nikon 50mm f/1.8D Lens: Perfect for Nikon DSLR Cameras!
97 Review