Irix 15mm f/2.4 - Review by Dionisis Eleftheriadis - Irix lenses were designed with both the effort and experience, of not only engineers, but also photographers. Swiss precision and Korean innovation create
Irix 15mm f2.4 Blackstone: Final Review | 4K - YouTube
Seven reasons the Irix 15mm f/2.4 may be the greatest budget ultrawide lens - Photofocus