This is a Minolta A-mount fisheye lens. You can capture images unique to a fisheye lens, which are different from those of an ultra-wide-angle lens. It also has a built-in color filter that can be switched, making it a fun lens. I used it on an α7 via an adapter without electronic contacts. Therefore, I have not confirmed whether the autofocus works. The rubber part of the focus ring is white, but there is no stickiness. There are scratches on the lens surface, but they do not affect the shooting. *I have not tested it in strong backlight. Please consider this before purchasing.