On the excellent workmanship, the product fully meets my expectations, mount on a fixed 50mm f / 1.8, it allows me the establishment of my 58mm filters. durable manufacturing, the thread does not creak, it slides alone and fits perfectly. I recommend it to all who would go from 52 to 58mm. But remember to buy a 58mm cap if you count the leave fixed. Comes a time, Amazon always top notch!
