A57: Viewfinder appears cloudy in low light?

Quick question: Does the viewfinder of the A57 appear a little cloudy in low light? I can't determine whether mine has an issue or it is normal. Everything seems okay in bright light, but in low light, it seems cloudy, especially when your eye moves slightly off the center of the finder.

Did anybody else notice that too? Is that normal due to the thickness of the glass used to bend the light?