When I was in Poland in the 1980s I tried taping over the "Canon" logo on my F-1, but I found I couldn't avoid attracting attention, since it was so unusual to see a modern Japanese SLR in Eastern Europe at that time. Professional photojournalists often had F-1's, because there was authorized Canon service in Warsaw, so if you carried an F-1, you were either thought to be a journalist or an exotic foreigner.
Then I picked up a big klunky Pentacon 6 used and eventually three lenses, and with this I could easily pass for a native and do street photography without drawing a crowd. I generally shot Agfachrome 100 purchased on the black market (the alternative MF slide film being Orwochrom). Most people probably assumed I was a local student (which I suppose I was).