Not sure why it says otherwise, but the NEX version fits the Sony A7ii. Fits to the camera so well you wouldn't know it isn't Sony, the fit to a Nikon Ai lens F mount is a little snug but it fits.Very happy.
27/06/2018
The adaptor itself seems to work fine. I've used it with lenses like the Helios 44M 58mm and Helios 28mm wide-angle with much success. However after shooting with it for several days, I've noticed maybe a dozen fine metal particles covering my A7ii's sensor. I can't be certain whether the particles came from a lens or the adaptor itself, but it might be a good idea to leave one of these adaptors on each M42 lens you have, or purchase a more expensive one that won't wear.
03/05/2018
Excellent adapter, does exactly as it should. I can now use my selection of M42 lenses on the Sony A7ii the way they should be used.
11/02/2018
Did exactly what the instruction said it would,made good use of my obsolete Nikon lenses.Regards Harmonicaron
26/01/2018
Does exactly what it claims to do. Solid build and all round nice adapter. Despite saying this does not work on the A7S, it works perfectly (not sure why it claims it doesn't).
02/01/2018
04/12/2017
Good machining shame wasn't the one I needed a lot of forums misleading about the adapter I needed but will use soon when have the right lenses
03/12/2017