Which lens do you need for your Nikon mirrorless camera?
Nikon Z full-frame mirrorless cameras
The mirrorless cameras by Nikon have a Z mount. You can only use Nikon Z lenses with these. Nikon distinguished the S series from the DX lenses. The S series was optimized for full-frame and offers a high image quality. You can use them on mirrorless cameras with an APS-C sensor as well. If you switch to a full-frame camera over time, you can continue to use these lenses. If you use a DX lens on a full-frame camera, you'll have black borders around your photo.
Nikon Z APS-C mirrorless cameras
If you want an affordable lens for your APS-C mirrorless camera, you can choose a DX lens. It's often more compact and has a lightweight design. Because and APS-C sensor is smaller than a full-frame, it has a crop factor of 1.5. You multiply this crop factor to the focal length of your lens. For example, a 50mm lens on APS-C is comparable to an 80mm lens on full-frame. Keep this in mind when buying a lens. For sports and wildlife photography, this is useful. It allows you to zoom in further with your lens.
Nikon FTZ adapter
To expand the lens assortment for your Nikon mirrorless camera, Nikon developed an FTZ adapter. This adapter has both the Nikon Z camera mount and a Nikon F lens mount. That way, you can use your Nikon F lenses on your mirrorless camera as well. In some cases, this FTZ adapter is included with the Nikon Z mirrorless camera.