01-15-2016, 08:45 AM
(This post was last modified: 01-15-2016, 11:29 AM by Brightcolours.)
![[Image: pic_01.gif]](http://www.fujifilm.com/products/digital_cameras/x/fujinon_lens_xf100_400mmf45_56_r_lm_ois_wr/specifications/img/pic_01.gif)
![[Image: lens-construction.png]](http://cweb.canon.jp/ef/lineup/tele-zoom/ef100-400-f45-56l-ii-usm/img/spec/lens-construction.png)
Comparing the element sizes with the FF Canon EF 100-400mm f4.5-5.6 L IS USM II, my guess is that it will not cover FF. Seems like Fuji is not planning to go the Sony/Leica route yet. The Fuji X mount looks to be a bit narrower than the Sony E-mount to me too, so maybe FF is not even an option?