Hi, I was trying to shoot night sky - stars - with my G5 + 12-50mm lens. I see noise specks everywhere in the photo, and I can't figure out what is causing this. I would much appreciate if anyone has had this issue and would kindly direct me to resolve this. Here is one of the shots. I have done similar shots before with E-PM2, and had no problem with it. Maybe I was lucky that time.