Summary: This lens is everything I expected it to be for the price, it is made of plastic and does not weight a whole lot. Images at full zoom require a tripod of course and the parts seem kind of loose.
Summary: This was one of the first lenses I ever purchased because I wanted some range and didn't have much money. Over the years I've made many purchases for my camera, and this is the only one I truly regret.The lens has been on my camera 3 times and every time I regretted it so much - both in the field and in post. The AF is *SO* slow and loud. It also is not internal focus, which is so annoying. It also searches really bad even in normal light conditions. In low light...
Cons: Loud Auto Focus, Slow auto focus, Soft Focus
Summary: This has a very decent zoom range. The lack of VR - vibration reduction - means that handheld at longer lengths is sub-optimal. A tripod is valuable, and with it, some great shots can be had. It amazes me that such a complex lens can be had for so little money; while not especially fast at f4.0 - 5.6, and not as well machined (meaning realy smooth and silky, zoming and focusing), the lens works as promised.
Summary: I bought this a starter lens for my son's D40, only to realize later that the autofocus does not work for this specific model. However, it does work with our D50, so we kept it for that camera and got the 55-200mm f/4-5.6G ED AF-S DX for the D40.
Summary: Got this lens to add a lightweight tele to my kit. Only disadvantage is the aperture, at f/4 or f/5.6 when zoomed it's not very useful in low light situations. Focus tends to be a bit slow in low light.
Summary: This is an excellent paperweight and I would definitely recommend it to my enemies... Jokes aside, this is a good lens for the money. I have used mine for photographing wildlife, birds, including birds in flight, surfers in action, the moon, flowers, street life, and even portraits with quite acceptable, at times good, results. I just don't think many of the shots I have made with this lens are great, and the blame for that does not always lie with the photographer.
Summary: I use this lense to shoot subjects without disturbing their peace or attention. Recently used it at a dance performance able to get shots that I once lost because I wasn't able to pick them up in the view finder. Only problem was with pick up subjects where there is no background or muted the lense and camera had a hard time focusing on subjects. Had to go to manual but otherwise very clear images were produced.