My 30 to 110 Nikon one lens died but it wasn’t because of the aperture. It wouldn’t focus properly I checked to have it repaired but it was going to cost me more to repair than buying a new lens. So I just bought a new used one on eBay for half the price of repair. This lens is great with extension tubes, it makes a great macro lens. The extension tubes are readily available in eBay for the Nikon 1 system. Thanks for the information I will save this thread and if I ever have to repair the aperture motor I know how to do it.