The manufacturing process didnt change much, its only tat in the past Nikon did not inform their customers the lens contains the hazardous materials, and now China regulation requires them to inform the customers the lens contains the hazardous materials by putting up the logo. (I guess the same goes for Canon, Sony, Olympus, Pentax etc)
Only when they find a way to manufacture lens without using the hazardous materials then we will be completely safe. Anyway everyday we also breathe in the exhaust pipe fume from cars, eat contaminated seafood and insecticide vegetables, and we are still alive...
Only when they find a way to manufacture lens without using the hazardous materials then we will be completely safe. Anyway everyday we also breathe in the exhaust pipe fume from cars, eat contaminated seafood and insecticide vegetables, and we are still alive...