This is a genuine Nikon mount adapter that allows you to use Nikon's classic F-mount lenses with Nikon 1 series camera bodies, including autofocus! It's become a rare item these days. The 1-inch sensor of the Nikon 1 has a focal length equivalent to 2.7x that of a full-frame sensor. Using relatively inexpensive F-mount telephoto lenses like the 70-300mm, you can achieve an ultra-telephoto range of 189-810mm. This setup was even used by YouTubers specializing in bird photography! Vibration Reduction (VR) lenses also provide excellent image stabilization! This product is becoming less common in the market, so if you're looking for one, don't miss out! [Brand and Model] The Nikon FT1 mount adapter is an essential accessory for attaching compatible lenses to Nikon cameras. [Functionality] This adapter allows you to attach Nikon 1 lenses to Nikon digital SLR cameras, expanding your photographic possibilities. [Condition] The exterior is in good condition, with minor scratches and wear from use, but there are no functional issues. - Brand: Nikon - Model: FT1 - Type: Mount Adapter - Serial Number: 2005760 Thank you for viewing.