Selling because I'm upgrading my camera. This is a gem for taking original and creative photos! Tokina AT-X 10-17mm F3.5-4.5 DX Fisheye lens, perfect for wide-angle photography. - Brand: Tokina - Model Name: AT-X 10-17mm F3.5-4.5 DX Fisheye - Focal Length: 10-17mm - Maximum Aperture: F3.5-4.5 - Type: Fisheye lens - Compatible Mount: Canon EF mount - Accessories: Box, instruction manual, lens body, front and rear caps This is a so-called fisheye lens with a zoom function. It can capture a very wide range, and you can take curved photos, allowing for expressions that are impossible with other lenses. The curvature is stronger at 10mm, and at 17mm, it becomes a wide angle similar to what the naked eye sees.