This is for Canon EF mount. I received this from a friend. The autofocus makes a loud noise, and it's unclear if the image stabilization is even working. The images are also blurry and not very good. The autofocus does function, though. The front element lock switch and AF switch work. The zoom ring is stiff, but since it's been like that since I got it, I don't know if that's abnormal. The exterior has a matte finish, so there are some scratches, and there's some paint chipping around the switches, but otherwise, there's no significant damage. There's dust in the optics, but I don't think there's any mold or haze. Neither I nor the previous owner smoked or had pets, but I don't know about before that. I don't know what the original new condition was like, so I can't tell if the condition of this item is due to deterioration or if this is the level of quality for a third-party product. I don't think it can be used for important photography, but I'd like to sell it as junk to someone who can make good use of it, such as for parts or display purposes. I will include a tripod collar, a dedicated hood, a hood extension part for shooting with an APS-C body, and a no-brand UV filter purchased from Amazon.