A:AnswerNo, this lens will not work with any Canon cameras, including the Canon t6i. For compatible cameras, look for a mirrorless camera with a Micro 4/3 mount, such as the Olympus OM-D E-M10 Mark II Mirrorless Camera.
A:AnswerBecause of the difference in flange distances, you can't adapt a micro four-thirds lens to the e-620. There is a four-thirds lens that Olympus made with a similar focal length, though.