Dust in viewfinder
I am fairly new to photography and recently purchased my first rangefinder camera, Bessa R2, on eBoy. I am very happy with my new toy except for one thing that bugs me. I notice there's a little spec of dust on the viewfinder. It's not there when I focus at close distant but comes out when I focus at infinity. How easy is it to have it cleaned myself? or is it better handle by pros?