Mounted on a Canon 18-55mm kit lens STM: This optical supplement produced a round image rimmed black (vignetting) on the image. For vignetting disappears, we should use that as of 24 mm focal length. But then the frame is substantially the same as you would get by adjusting your zoom to 18 mm without adding wart that can qu'altérer image quality. If this is the wide angle function you on the kit lens, go your way.
