VinceLane

Street - chat
 
X-T1 / 50-140 f 2,8

Lunch - Maha Bandula, Yangon, Myanmar (X-E2, XF18-55)
 

35mm  1/100th  f4  !S) 2000  X-T1   :  title  -  And the World passes him by
 
 

well, you are right, BUT, as amply shown above, there are adaptors ( with aperture possibility) and there are adaptors ( just adapting the bayonet and nothing else).
 
However I agree, I would not use this 1-22 an I wouldn’t use any adapted wideangle lens or a zoom or any other lens that only makes sense if used in autofocus.

The EF lenses don't adapt very well to Fujifilm or most other brands. There seem to be some adapters to make them work reasonably well with Sony, but not really other brands. My recommendation would be to sell that lens and purchase the 10-24mm F/4 version from Fuji. You will definitely end up with better results. The main reason the EF lenses from Canon, and a lot of newer lenses in general, don't adapt well is they require electrical contacts to adjust aperture and to focus. I adapt some old FD lenses and some old k-mount ones with great success, but they all have manual aperture rings. I've sold all but one of my collection of Canon EF lenses, almost all of which were L versions. I have an adapter for the EF lenses, but never really used it for that reason. 

on line you will find a number of adaptors some will have no aperture at all ( depends on the lens that you want to adapt) and some will, for the lenses that haven’t , some will have electrical contacts ( and external power supply) some will have also focal reducing capabilities like the Zhongyi lens turbo II.
 
Adapting zooms is not very useful when you lose the autofocus.
 
Adapting wideangles will be impractical and won’t yield great results anyway. 
 
So, in the end you will see that unless you are single minded adaptive photography will only ever be a marginal part of your photography because the caveats are way more than the advantages over the lenses of the Fuji system ( Unless you want to have a race car on the hand brake all the time).