Bronica Polaroid film back. Like new, still in box. "Bronica SQ-i has speeds between 25 and 6400 ISO (25, 50,100,200,400,800,1600,3200,6400 with clickstops at 1/3rd increment between them)." I used this for only a couple rolls of film. I may be selling my SQ-Ai body and lenses after August. All of it is like new. Contact me if interested. Location: Canby it's NOT ok to contact this poster with services or other commercial interests oregon