Later today the engineering department is starting a meta consultation on the media viewer software and they want to put a banner up for logged in users to alert them to this. I've created a simple banner for this and if people are able to translate it quickly it would be great so that we can roll out with a couple languages already done. 

You can find the translation interface for the banner at https://meta.wikimedia.org/w/index.php?title=Special:Translate&group=Centralnotice-tgroup-MediaViewerConsultation_A and I've copied the text below if you'd rather email me a translation.

Have you used the new media viewer?

Your feedback will help improve the user experience.

Thanks in advance!

James