mod should lock this thread, we have more updated thread here
Unofficial Inspire X5 compatible lens list
Panasonic pz 14-42mm wont work, the barrel is too fat and would touch the side.
saw this from another forum LensesThatWorkWithX5 by Nelson posted Apr 18, 2016 at 4:28 PM
The longest lens you can mount is Sigma 60mm which according to chart it will balance without using any filter