Panasonic G85 has a Micro Four Thirds lens mount and currently there are 121 native lenses available for this mount.
The latest released lenses that are compatible with the G85 are the Rokinon 7.5mm f3.5 Fisheye, the Samyang 7.5mm F3.5 Fisheye MFT and the OM System 90mm F3.5 Macro.
G85 also has a sensor based image stabilization system which means that all of these lenses will be stabilized when used on the G85.
Since Panasonic G85 has a Four Thirds sensor, it has a focal length multiplier of 2x so you have to multiply lenses original focal length with this multiplier to find the Full Frame equivalent focal length of the lens when mounted on G85.
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Panasonic G85 Lenses with Image Stabilization
Panasonic G85 Lenses with Weather Sealings