Tokina 10-17mm f/3.5-4.5 AT-X 107 AF DX Fisheye Lens for Canon

The Tokina 10-17mm f/3.5-4.5 AT-X 107 AF DX Fisheye Lens for Canon is a rectangular (non-circular) fisheye lens, providing a 180° diagonal field of view. The broad angle of view gives an inherent curved, fisheye effect and can be used to capture expansive spaces from a relative close range.