I have just received my p4 and checked it all over. I ordered a refurbished p4, but I thought it was supposed to have an "R" in the serial #? I check the lens glass. I looked at the p4's body and can't find a scratch or mark on it anywhere. Looks new to me. I have the battery on charge. I'm about ready to do the registration. I'll take my time. I not in any hurry. I want to baby this phantom after I abused my p3. I did learn a lot inside and out. Even if someone wants to get a p4, I think getting a p3 and learning on it really helps. There are always those little things that crop up that you never thought would happen. Well, now the adventure begins.