Fotodiox 52mm Macro Reverse Ring Kit with G and DX Type Lens Aperture Control, 52mm Lens Cap and 52mm UV Protector for Nikon Cameras Same design quality as Fotodiox Lens Mount Adapters Enabler allows aperture control in reverse mount with G & DX-type lens Extreme macro close-up results Precision threading Includes a 24 month manufacturer warranty