Been using this camera since 2012, mostly digital with several digital backs. Shot only a handful of films through it. the lenses are outstanding, especially in studio with flash, if you have a 60 or 80mp back you wont ever need anything else, its just perfect, the 80mm is incredibly sharp. recently got another C645 body as a backup AF is in my opinion straight up useless but for my work i dont need AF and i have the split screen focus