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HI All, I'm on my second Sony Ar7II nd 3rd Metabones Canon EF Lens to Sony E Mount Smart Adapter (Mark IV)I in 3 weeks and I still keep getting this message "! LENS Invalid with this lens" when I press on the button on the wheel with any f2.8 len EF lens attached (tried 4). I have tried upgrading the firmware but it hasn't uploaded the the new version on any of the 3 adapters because it says OK in green. I asume the adapters are updated to the newest VO.41 version because there isnt any uploading going to the adapter. The only thing I can think of is I possibly have the wrong USB cable (Iused the one that came with the new Sony camera) but it seems to fit well and says connected. Any thoughts would be deeply apreciated. Sony doesn't have a clue, Camera store doesn't and Metabones is so difficult to communicate with . . . all they say by email is to send it back but like I said has happened to all three adapters. Thanks much, Emily