I am currently using the Canon 700D and think of shifting to a Fujifilm X-T1. I came across the kamlan f/1.1 which is a very fast standard/short telephoto lens. I am looking for sub-750 USD lens, that provides standard/short telephoto focal lengths and fast apertures that cannot work on my Canon APS-C camera.
Other lens I found near this price range but not exactly in it:
Mikaton 50 f/0.95
Examples with good image quality fully open/less than F/2 are a bonus. Corner sharpness must be good too as my compositions tend to have some detail near the corners as well.