Camera Accessories
SAMYANG 8 mm f/3.5 UMC CS II fisheye lens - for Canon
Field of view: 180° Maximum aperture: f/3.5 Minimum aperture: f/22 Focus type: MF (Manual Focus only) Lesn construction: 10 elements / 7 Groups / 1 Aspherical lens
https://www.bizrate.co.uk/cameraaccessories/samyang-8-mm-f-3-5-umc-oid4777124761.html