TTArtisan makes some very affordable lenses, and at $118, the 17mm f/1.4 is no different. Offering a wide focal length paired with a maximum aperture and available for a wide variety of APS-C mounts, it looks like a potentially useful budget option for a wide range of shooters. If you are interested in such a lens, check out this great video review that takes a look at the 17mm f/1.4 and the sort of performance and image quality you can expect from it in practice.