Advantages: cheap. Sugar water tablets are also very good when the light is good. Disadvantages: the focal length is still relatively short, and it is more difficult to shoot birds and play the moon. Suggestion: Evaluate whether you will have a fever in the future. If there is, directly go to 70-300 VR, more than 3000, to avoid repeated investment. In addition, this lens is generally matched with 18 ~ 55, 18-55, 35- 1.8, 55-200, which is enough for friends who are short of funds. However, if you already have a lens above 18-70 (price), congratulations, you have the potential to toss, I still suggest you go to 70-300 VR to avoid repeated investment in the future.