ive noticed my old nikon lens has got a small little tiny fungus at the very corner of the inside glass lens. it doesn't affect the picture because it's at the very corner of the inside lens and away from the sensor view. i plan to get it cleaned (before it start to spread) and serviced same time at nikon service center. how much this cost roughly? it's a 18-105 zoom lens. if ya know how much the range is let me know! thanks

Too expensive... street price can get much lower ;-)