I just bought a 35mm f1.8 lens for my D3000 for dirt cheap since my friend didn't need it anymore. However, there are a few dust spots on the inside lens (the little lens)... I used a rocket blower and a fiber cloth to clean it but all it did was spread the dust around the lens. Though not visible when I take a photo, I would still prefer the inner lens to have no or mimimal dust... instead of be a dust farm as it is now. The outer lens has no dust however since it has a UV filter on it.
What kind a cleaning equipment should I be using? A lens pen?