If you can read french, this is a very good small eBook to buy.
They have took time to analyse a lot of lens on the camera and also give a efficient way to describe and use the camera. I think I will keep my Sony NEX 7 finally. Only fools don't change their minds
. The size with quality win too much with this little beast.
Here is the link : http://alpha-numerique.fr/index.php?option=com_content&view=article&id=906:le-sony-nex-7-par-jean-marie-sepulchre&catid=19:livres&Itemid=392