I hope people will not mind that I am just "parking" this information here. I am only mildly interested in these adapters because I have no Nikon lenses and my a5000's focussing system is too weak to support these particular advanced adapters anyway. But I am curious about this because for years now, adapting Nikon lenses to Sony's E-mount has been a problem that has looked like it might have been solved, but leaving us disappointed after testing. [2017-12-24 - reworded] Maybe this year is the year that things become acceptable. The Vello review is of the 2017 version 4 adapter. If you check around, that is a discontinued product and version 5 is available. I think the Commlite is the latest model. "Vello Nikon F Mount to Sony E-Mount AF Lens Adapter" posted by "Lensvid", Aug 8, 2017 "Nikon-to-Sony AUTOFOCUS Lens Adapter - COMMLITE EN-EF1 PRO ♂️" posted by "Sean Michael", Sept 2, 2017 Anybody interested in this stuff?