This is a high-performance zoom lens made by SONY, a G lens with a focal length of 16-35mm and a maximum aperture of F4. - Brand: SONY - Model Name: FE PZ 16-35mm F4 - Mount Type: E-mount - Filter Diameter: 72mm - Features: G Lens - Focal Length: 16-35mm - Maximum Aperture: F4 Thank you for viewing. I purchased this new last September. I've only used it twice for video shooting and I don't plan to use it in the future, so I'm selling it. The manufacturer's one-year warranty has a few months remaining. The condition is very clean. It has been stored in a dehumidified storage. As a bonus, I will also include a protective filter, so please use it if you like. I am also selling a NiSi ND filter that was attached to this lens, so please consider it as well.