>>4112383>This also affects third party wide angle lenses.If you refer to 3rd party modern lenses, then optics are all designed for that particular for the E-mount cover glass, and it's the other cover glass sizes that will suffer from the inaccuracies..
This has been the save starting with Zeiss, then Tamron, then Signa, Then Samyang etc.
http://www.verybiglobo.com/photokina-2014-zeiss-loxia-story/