50mm F1.8 prime lens for E-mount. - Brand: SONY - Model Name: FE 50mm F1.8 - Mount Type: E-mount - Filter Diameter: 49mm - Lens Type: Prime lens I purchased this lens when I bought my camera, but I'm selling it because I haven't used it much, preferring other lenses. I've only taken it outside once, and I used a protective filter from the start, so it's in very clean condition. I've stored it in a dry cabinet when not in use. I don't see any dust or debris inside the lens, but please understand that I am an amateur, so those who are very particular about this should take that into consideration. I'll include a protective lens filter as a bonus.