What to do with dust in lenses?

[silverarrow]

Hi,

May i know how CS'er deal with dust problems in lenses?

I'm not refering to fungus growth, but just some speck of black dot/dust that got adhere to the glass somewhere inside the lense.

Do you send it to get it clean by local service centre? and what's the costs like?

But it does not affect the picture quality yet and has not found it even when i blown up the picture size.

Regards

[Fotophilic]

just ignore it if it does not affect the pic quality.