Nikon Z6 has a Nikon Z lens mount and currently there are 59 native lenses available for this mount.
The latest released lenses that are compatible with the Z6 are the Viltrox AF 56mm f1.7 Z, the Nikon Z 28-400mm F4-8 VR and the Meike 55mm f1.4 AF.
Z6 also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on the Z6.
Since Nikon Z6 has a Full frame sensor, it has a focal length multiplier of 1x so lenses will provide their original focal length on Z6.
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Nikon Z6 Lenses with Image Stabilization
Nikon Z6 Lenses with Weather Sealings