This lens had worked well for about 3 years. I used it regularly almost daily. We live in a dusty desert environment. I captured great swimming pool, splash photos, macro, baseball hits, smoke, weather and numerous other images with it and they all turn out fabulous. It has been a great simple lens with incredible turn out. After around 3 years, the lens did start to lock. It wouldn't focus or move. After messing with it, taking it off etc. it would work again. Now there is a piece of plastic that appears broke off inside. It no longer works at all. I am very careful with the lens and camera. It has never been dropped or banged or "abused." It seems it lasted longer than some other reviews on here but I thought I post mine because it does seem inevitable that this problem will occur.I am trying to figure out what lens to buy for my Nikon similar to this. Any suggestions would be great:)