Viltrox NF-E1 Lens Mount Adapter for Nikon F-Mount Lens to Sony E-Mount Camera

Great because I can use my Nikon 35mm 1.4G lens on my A7R3 A73 with eye-af etc. Doesn't work on my Nikon 17-35mm 2.8 ED though -- can't focus on anything. My biggest gripe is that this cheaply made yet expensive adapter unmounted Nikon lens very easily, without any effort. I wouldn't trust this adapter when you have your lens and camera hanging from a neck/body strap.. luckily it didn't drop but I just noticed that my lens was loose when i picked it up. Mounting the Nikon lens on this adapter has little to no resistance. Sometimes the lens cannot be read by the camera since the contacts does not fully touch the lens' contacts. Shifting the lens left-to-right has alot of give - basically its not tight and secure. I wouldn't recommend this to people but given that there's only 2 options for autofocus Nikon lens adapters, I would be cautious about purchasing this adapter