This lens was used with a full-frame camera, but I'm selling it because I haven't used it much. With an incredible 10x optical zoom, you can capture everything from landscapes to small wild birds with just one lens! It's a great help in situations where changing lenses is difficult. I confirmed that it could take pictures and focus accurately right before listing it. However, I haven't performed any measurements using specialized equipment. There are some scratches and dirt on the exterior and lens due to normal use. Please refer to the photos before purchasing.