I think sticking to one or two films allows vision to come to the fore, this is when I've been most productive at least. It's extremely difficult to be this disciplined for me, but it always pays off - in the productivity department. It allows me to focus on the end goal of a project, rather than constantly thinking "what film/developer/paper should I use next?" If restricting myself to a particular technique/film led to stagnation, I would put it down to a lack of insight, rather than "I need to use more films/cameras/processes". Michael Kenna has been doing the same thing for years, yet his consistent use of the Hasselblad, medium speed black and white film and high contrast small prints hasn't led to his stagnation - in fact, having this discipline of technique and approach has allowed him to be incredibly prolific within the confines he has set himself. As is the case with David Ward, this kind of tunnel vision approach that many of the great photographers have is becoming impossible - in traditional photography at least. It's just hard to tell at the moment if this is due to the Kodak/Fuji problem or because, like the BJP editor said, photographers are generally moving towards an experimentation with the medium because of the shifting & ever changing options in imaging. But will this shifting ever end? If not, I think it will cause an anxiety in the artist that will always affect the quality of their output.
Originally Posted by jnanian