Bought for eight dollars (Amazon was offering a discount at the time), not counting on anything good, but after taking a picture, I realized that it was inferior to expensive ones, except perhaps only in the range of focal lengths and, of course, aperture. Bought for eight dollars (Amazon was offering a discount at the time). Because of its versatility, the Tamron 18-200 is the lens that I use for the majority of my photography. However, if I am going to photograph something artistic and the 35mm lens is not appropriate, I switch to it so that I can get better shots. Generally speaking, astonished in the positive sense of the word. I gave the aperture ratio a rating of 5 stars because you cannot insist on 1.8 when purchasing a lens with a focal range of 3.5 to 5.6:-))) I am completely ignorant on the topic of safety. I make it a point to keep my fotik away from hostile environments if possible.