Condensation on af points

[GR3Z]

I've just been using my camera and noticed that when I select a different focus point and the af points turn red, that there seems to be what looks like condensation around the bottom few points I've never noticed it before, but not really used the camera in the dark before, is this something to be worried about?

 

[born-shooter]

If there are marks when you look through your viewfinder 99% probability it's on your focus screen cheap DIY fix