Panasonic 14-45mm F3.5-5.6 zoom lens, 52mm filter diameter, Made in Japan. Autofocus worked fine, but it's being sold as junk due to no front and rear caps and mold. - Brand: Panasonic - Model Name: H-FS014045 - Focal Length: 14-45mm - Maximum Aperture: F3.5-5.6 - Filter Diameter: 52mm - Country of Manufacture: Japan Thank you for looking.