Every so often I get an email asking me about adapters and what lenses to buy, one chap wrote to me recently and although he had Nikon glass did not seem to realise the significance of the lever on the MTF Nikon adapter. Please note MTF produce various Nikon adapters this is a generic tutorial and is using a Nikon to Sony E mount adapter. As far as I am aware Mike of MTF Services does not supply instructions with his adapters it is therefore assumed that you know how to use them.
We are all sitting at different levels of technical knowledge and it seemed to me a good idea to expose the MTF Nikon adapter and how it works just in case you are to frightened to ask. Its not obvious to a non technical person exactly how the Nikon lens operates with the adapter and if the lever with the blue nob is tightened you may not think to unloosen it.