I normally go to Craigslist, offer $20 and ask that question except I want all the titles done. This way somebody from Serbia / Albania / Bangladesh proposes a solution that I instantly fall in love with.
Oh, and I submit to you -- this obsoleted the BMPCC.
The Lumix LX100 needs to be seriously considered.
Basically it gives you 24mm at f1.7 while 1080/60.
My Canon can't do that -- I did not like my 28mm f1.8, I am not gonna buy 24mm f1.4 cause I already have 35mm f1.4 and my $600+ wide-wide angle is f3.5 at its best. Neither will give me 1080/60 due to the camera limitations.
Obviously, I still have no idea what LX100's dynamic range is, what its batteries cost, etc., but the hardware is what I wanted the 7D mII to have.
You probably know the following, but let me restate:
the Canon ASP-C sensor comes only with an EF-S mount. This mount can take only an EF or an EF-S. So, if a third party targets EF-S then it will be EF-S only.
As you know the reason behind the EF-S camera is having a smaller sensor and the reason behind the EF-S lenses is using less glass (which means you get more actual lenses from the same amount of material). So, the 3rd party EF-S lenses that target the crop format should not be reversely compatible with the EF mounts.
Now, that's the hardware part -- this is limited by the dimension and the lens protrusion into the camera body.
The software part is not driven by the EF or the EF-S standard. The protocols are proprietary Canon where only some manufacturers such as SIgma or Tokina might have full access. Or might not have. Thus, the reality is that the 3rd party EF-S lenses should be expected to have random ability to communicate with the camera.
This is the risk.
Inherently only three sources can give you the final answer: either canon but they dont test 3rd party lenses; the manufacturer of the lens after testing it with Canon but Tokina's website is silent on the actual information that a Canon camera can get from the lens:
which leaves you with only one option -- take your camera to a store and try the lens on.
What's your gear list? May be your camera is good enough, and instead you need lights, slider/jib, jib motorized kit, lenses, drone, audio recorder, video recorder, storage, editing software, editing hardware, mics, mixer, superclamps, stands, suction cups, rig, website, reel... phew... know what I mean?
Is this the speed booster that you have:
If so, the description section states:
Not supported: EF-S lenses (some EF-S lenses may need modification)