I'm giving this four stars because, no one said that you have to have a t-mount (purchased seperately) in order to attach the camera to the lens. I don't care for the llittle paper that calls itself a manual. There is no customer service number to call in case you get stuck. I might add that I'm a beginner so, this could also be the reason that I didn't get it the first time that I tried. It of course has to be in manual mode. Now I need to learn manual mode, I'm happy about this part. It is heavy 4.4 lbs. I kept messing around with it until I finally understood how to work it. I didn't want to send it back, I was determined to figure it out. Now I'm OK with it, when I learn more about photography, I will naturally learn more about operating the lens. It has a really cool case with handles on it.It got here really fast. I would recommend it to someone that knows a bit about photography, they would know more about how to get it to focus. I hope that this helped someone.