I personally loved this lens for its ability to instantly switch between my favorite focal lengths, 16mm and 28mm, with an internal zoom, making it perfect for snapshots. However, as my video work increased, I purchased a genuine lens with image stabilization, so I'm selling this one. As a bonus, I'll include a Kenko lens protector. Please check the photos for the condition. *Stored in a dehumidifying cabinet. - Model: 16-28mm F2.8 DG DN - Brand: SIGMA - Mount Type: Sony E-mount - Focal Length: 16-28mm - Maximum Aperture: F2.8 - Filter Diameter: 72mm Thank you for looking.