Case-maker SPIGEN leaked the Nexus 5 yet again with a nice photo of the back. It was no mistake either, the Google+ post is tagged #google #nexus5. The image shows the characteristic large circle around the back camera, which according to a leaked manual is an 8MP OIS-enabled shooter. There's also an obscured peek at the front and the 5" 1080p screen, showing the stock wallpaper...
Source: http://www.gsmarena.com/casemaker_spigen_releases_another_image_of_nexus_5-news-6953.php