So during a shoot yesterday, I discovered a black speck in the viewfinder of my 5Dm3. Though it doesn't affect the image, it is rather annoying. I took a quick look at the mirror, and it does not appear to be on the mirror. If I had to take a guess, I'd say it's on the focusing screen -- reason for my guess is that the speck is always in focus.
I've read around and the general consensus is to 1) Use a rocket blower to attempt to blow the particle out, 2) Send my camera to CPS for cleaning/repair, or 3) Live with it.
I'd really like to avoid 3, since I'm rather OCD and it would frankly annoy the crap out of me. If it's 2, I can probably live with it until I need to have the camera cleaned... but I've also heard I'd likely get my camera back with even more black specks in the viewfinder.
So has anyone experienced and (more importantly) fixed this problem?
Thanks in advance for the help, everyone!