Every lens sure will have dusts specks inside one lah.
:thumbsup: even buy new lens also come with dust as free give.:bsmilie:
There are even my level of clean room. Class 10000, class 1000 and so on...
I believe the level of cleanroom of producing lens is not as high as wafer fabrication right?
So just live with the dust in the lens and dun be bother by it.
There are many ways of reducing dust in lens for those who are so particular :
1 Only shoot in clean environment like in aircon places or studio.
2 Buy only those lenses that are sealed, with constant length, nothing that moves when you zoom and focus. You will end up with much, mucho less dust. :thumbsup:
3 Learn how to carry out cleaning of the elements in the lens yourself. Understand that someone might be conducting such a course. With that, you can clean your lens after each and every shoot! [just like you got to clean your M16 after every shoot, right] :bsmilie:
hmm... i also got 2 specks of dust... suddenly just appear... but it is still under warranty... is it free to send it to NSC to remove the dust since it is still under warranty or is it advisable not to?