Hey there, I'm a sports photographer with a Canon 7D Mark II, and a 70-200mm, so far so good, I love this tele. But when it comes to wide angle I currently use a poor kit lens, it really is bad. Because in my free-time I also do some portraits I wonder which of Sigmas primes would be the best. I´m between the Sigma 20mm 1.4 Art, Sigma 24mm 1.4 Art, and the Sigma 28mm 1.4 Art. Even though the 20mm might give me with a crop factor of 1,6 the most wide angle, I wonder, if it would look kinda "weird". On my camera that would be 32mm, sounds good, but somehow still 20mm... (like angle of view...(you know what I mean)). Of course the lens should be really sharp, to my believe all of them are (or not?). Autofocus should definitely fast, yeah not as fast as a sport lens, but fast enough. (Yes I know there are also lenses from Sigma for APS-C, but sooner or later I will switch to full frame, therefore it would make not much sense, to buy a prime that awesome just for APS-C) So if you guys have any suggestions, experiences, or thoughts about my "problem", I would love to hear from you. If you have any further questions about my use cases and so on, feel free to ask.