This is a Sony 50mm F1.4 lens. It's in very good condition with no dust or debris. A lens filter is also included. - Brand: SONY - Model Name: FE 50mm F1.4 GM - Accessories: Lens cap, lens hood, case, instruction manual - Focal Length: 50mm - Maximum Aperture: F1.4 - Mount Type: E-mount Thank you for looking.