11mm F2.8 fisheye lens, perfect for wide-angle photography. - Brand: TTArtisan - Model Name: 11mm F2.8 Fisheye Lens - Lens Type: Fisheye Lens - Maximum Aperture: F2.8 - Focal Length: 11mm - Lens Construction: ED (Extra-low Dispersion) - Mount: Leica L mount Thank you for viewing. Used only once outdoors. The lens is overall clean with no scratches. I think it's safe to consider it as a new, unused item. The fifth photo shows the lens attached to a Sigma fp (※camera body not included).