Hi, I've got a Nex-5 straight out of the box, an e-mount off ebay and a Minolta 75-300/4.5-5.6 II lens. It all attaches together ok, but when I press the shutter, I get the message "Cannot recognise lens. Attach it properly".

There's no electrical connection between the mount and camera body.

I have no technical knowledge of cameras, so please keep any advice simple.

Any ideas please.

The mount I bought is off ebay, and this is the item number 360312319485

The lens was off ebay also item number 190468844023

I don't know about firmware, or what it is or even how to update it!

thanks for your help

Sven