Fujifilm has announced the GFX 50R, a rangefinder-styled medium format model based on the earlier GFX 50S. It adopts the same 51.4-MP cropped medium format sensor (43.8 x 32.2mm) as its sibling and much of the rest of the internals, albeit in a smaller, more compact body and with a significantly lower ticket. The GFX 50R adds Bluetooth connectivity with a smartphone and offers a similar build and weatherproofing as the 50S.  The built-in OLED viewfinder is a smaller 3.69M-dot unit but offers a reasonably generous 0.77x magnification. At the rear, the 3.2-in 2360K-dot touchscreen LCD uses a conventional tilting mechanism. The 50R has dual SD card slots with support…