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Amazon.com : FocusFoto Adapter Ring for EF EF-S Lens to Nikon F AI Mount Camera with Optical Glass for Nikon D750,D810,D7500 ,D7200,D7100,D7000,D5600,D5400,D5300,D5200,D3300,D3200,D90,D4,D3X,D2 etc. : Electronics