In the X-Pro 1's custom menu, one of the options is
Focal Length Setting. The manual says:
FOCAL LENGTH SETTING (Defaults to 50mm)
Enter lens focal length when using a lens that does not supply the focal length to the camera. Choose from LENS 1 (21 mm), LENS 2 (24 mm), LENS 3 (28 mm), LENS 4 (35 mm), LENS 5 (50 mm), and LENS 6 (75 mm).
With the 35mm normal lens attached, this says 50mm. I don't have any other lenses to test with, but my impression here is that this setting is just left at the default and ignored when using an XF mount lens with electronic coupling. However, some people say otherwise — that the value is at 50mm because that's the closest standard value to the effective focal length of the lens.
I think they're just wrong, but since multiple viewpoints are out there I wanted to be sure. Does this setting have any effect whatsoever when using an XF lens?