✔ 最佳答案
35.8 have motor, and if you use d5000, you have to x1.5 and the 35.8 will become something about 50.8. if you use 50.8, there is no motor and you can not enjoy AF and it will become 75.8. if you want to try prime lens, 50.8 is great. if you want something for you to do some snapshot, i think 35.8 is better