Nikon Series E 50mm f1.8 lens mount_Mamiya NC that's not an AR-10

that's not an AR-10

and just minor dust in the glass

but you'll need to use the included external viewfinder to frame your shot (it's too wide for the camera viewfinder)

and records 4k video at up to 24fps- pretty impressive for a camera this small and light

Maybe a bug

Nikon Series E 50mm f1.8 lens mount_Mamiya NC that's not an AR-10The Nikon Series E 50mm f1. 8 lens is a compact almost pancake lens (french toast lens?) with a fast f1. 8 aperture. It is compatible with film and digital Nikon F mount cameras (though function will vary). In excellent condition, with minor cosmetic wear, minor internal dust, smooth focusing and good diaphragm action.