I echo the prior comments about the Bessa R4. To me, it seems to be a camera made for the 28mm lens. This lens seems to match perfectly to the viewfinder on the R4. The ability to also use the 21mm on one end of the spectrum and the 50mm on the other, make this an ideal travel camera. That said, the focus accuracy of the rangefinder and the 50mm lens seems to be off, likely because of the viewfinder magnification and the wide open apertures that I often find myself using with this lens (generally for available light portraits). Have a great trip.