Hello everyone, I'm considering taking some photos of the upcoming solar eclipse. I have a GX7 and am thinking of using a Pana 100-300 to take the picture... I've read some threads on it, but couldn't quite make out the details, so here are some questions if someone can help: Do I absolutely need a special filter, not ND? If so, what kind? Can someone give me a link in amazon or somewhere else? Why the special filter? Better colors/picture or to prevent damage to the camera? Thanks. Pedro.