Comparison of different Fujinon lenses on the X-T10.
For a comparison to the X100s see Angle of view, for the macro extension tubes see MCEX-11 and MCEX-16, for more comparison pictures of the 100-400mm with the 1.4 converter see Fujinon 100-400mm.
400m + 1.4x converter
400m + 2x converter
On the pictures: Botanical Garden and University Library, University of Basel.