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Hartley always developing some new process, techniques-yet-named, aerosoling impasto, rubbing wood blushes, printing crumpled flat, etc. Processes for abstraction like all those modern photographers solarizing, photogramming, or just pouring light concrete. Processes to fulfill our need for the novel. And nice. But maybe the best analogy would be Tillmans' "Blushes" where the very thing at stake, their tension, is in seeming to be both lovely and arbitrary. Our fear.
see too: Wolfgang Tillmans at Maureen Paley