SFX@ISO 200/120 format DiXactol single bath 8 min.@ 21C. Using Paterson Universal tanks, 30 seconds continuous agittation thereafter 3 inversions every 30 seconds. Superb IR negs. of gentle gradation even in harsh lighting. I always use a Heliopan 695 (Wratten 89B equiv.) filter with a 5 stop increase.(posted 8443 days ago)