Large-aperture 50mm prime lens, achieving high image quality with an F1.4 brightness. - Brand: SIGMA - Model: 50mm F1.4 DG HSM - Accessories: Hood - Features: Large aperture, prime lens - Lens diameter: 77mm Thank you for viewing. I am selling this because I have significantly reduced the frequency of use. It has been stored in a dehumidified storage unit, but (dust) and (scratches) are as shown in the photos. Please refrain from purchasing if you are sensitive to these details. If you have any questions, please ask in the comments.