Selling because I'm upgrading. I'm not an advanced camera user, just a hobbyist, so I'll describe it to the best of my ability. I used this lens as my main lens, so it may show some signs of use. Please check the photos. There appears to be a slight amount of dust inside the lens, but it doesn't seem to be on the lens surface, so I don't think it will affect the photos. There is no mold or fogging. I used a protective filter. Both the front and rear elements look clean. I've priced it low. Thank you. Size...Canon EF mount Canon Model Name...EF-S 18-135mm F3.5-5.6 IS STM Focal Length (Wide)...13-18mm Focal Length (Telephoto)...101-200mm