Summary: To Reviewer #1: The lens description says "Manual Focus" It also comes with a T-adapter. While I don't have this lens, I bought another MF/T-adapter lens and guess what? "Lens not found!" Why? No electronics in a MF lens. There's a reason the lens is under $200. I am certain the optics are fine and that the lens works as advertised, even though I haven't bought it. Why?
Summary: It's very good choice, if you don't have money to buy professional/tv quality equipment. Tripod is good, and it's free. But this tripod is weak for usage with 800/1600mm lens, attached to photocamera. For this weight you'll need to buy professinal tripod for videocameras. Lens are good enough, you can make good shots from very big distance.
Summary: I bought it because I sometimes needed the distance but I did not have the money for a regular lens. I like it. You must use a tripod. it is very hard to focus and if the wind blows you are out of luck It is very hadr to hold it still. But i have gotten some great pictures.
Summary: This lens is working very good. It needs to be used on manual mode so need to adjust the -shuter speed and -iso and -the light and you will take abeautiful photo of the object. Worth the money.