Greg - I think you'll find the aperture rings on the Fuji lenses are merely a selector switch, rather than a mechanical linkage that adjusts the aperture diaphragm.
Haven't tried the Canon trick of depth of field preview while removing a lens from the body - don't think there is such a button on my X-E2.
I did get some improvement by using a 1mm shim to adjust the flange to sensor distance with my 14-24, but there was still a lot of distortion in the corners.
DT
|