This is a SIGMA single-focus lens with an F1.4 aperture. I bought it because I was attracted to the lens's brightness, but I ended up choosing the convenience of a 17-50mm lens, so I'm putting this up for sale. I think the bokeh of F1.4 is worth seeing. I carried it around and used it to some extent, but this is just an amateur's perspective, so the deterioration isn't severe, and it's still in a condition where you can use it. Although it's a visual inspection by an amateur, there is no dust or mold inside the lens. * Canon mount, operation confirmed, lens hood included This is a used item, so no claims and no returns. Please only purchase if you understand this. - Brand: SIGMA - Model Name: 50mm F1.4 EX DC OS HSM - Features: Equipped with AF-L/M switch - Country of Manufacture: Japan - Lens Type: Single Focus Thank you for viewing.