Reddit reviews Fotodiox Pro Lens Mount Adapter with Aperture Dial (Switchable for Clicked or De-Clicked Aperture), Nikon G and DX type Lens to Sony E-Mount NEX Camera, Nikon G - NEX Pro Camera Adapter, fits Sony NEX-3, NEX-5, NEX-5N, NEX-7, NEX-7N, NEX-C3, NEX-F3, Sony Camcorder NEX-VG10, VG20, FS-100, FS-700
We found 1 Reddit comments about Fotodiox Pro Lens Mount Adapter with Aperture Dial (Switchable for Clicked or De-Clicked Aperture), Nikon G and DX type Lens to Sony E-Mount NEX Camera, Nikon G - NEX Pro Camera Adapter, fits Sony NEX-3, NEX-5, NEX-5N, NEX-7, NEX-7N, NEX-C3, NEX-F3, Sony Camcorder NEX-VG10, VG20, FS-100, FS-700. Here are the top ones, ranked by their Reddit score.
Professional Premium Grade Fotodiox Lens Mount Adapter with Built-in Aperture Controller (De-Clicked)The adapter has the unique ability to turn the aperture 'click' on and off"No Play" Adapter with a Smooth Surface for am Effortless MountInfinity Focus Guaranteed, Top Notch Craftsmanship24 Month Manufacture Warranty
Yes, they are F mounts. I got a very similar adapter but Fotodiox brand from Amazon. I have since read that it is better to purchase one like this because it has an aperture control ring. Some of my lenses do not and since there is not a Nikon-->Sony adapter that will allow full control of the electronics you might need it depending on your lenses. There is more information in this thread on DPReview.