Graffiti, Via del Pratello, Bologna
While experimenting with the 10.5mm DX-Fisheye on full frame, I came across this face...
Nikon D810 + 10.5 mm f/2.8 AF DX Fisheye-Nikkor (shaved hood)
The shaved-hood 10.5mm has enough power to fill the FF frame, too bad the image isn't a whole circle (you'd need an 8-8.5mm fisheye to achieve that!). If I remember correctly, NG longtime contributor Seapy has devised a tool for composing two frames (with a tripod), one landscape and the other portrait to get a circular frame from a 10.5mm. I tried composing handheld shots with Photoshop, it works but you have to be very accurate in framing the shots!
Ciao from Massimo