About this item f-stop at 2 m (6 1/2 ft) distance, 100 ISO with reflector P70: 45 6/10 control range of flash energy: over 9 f-stops in 1/10 or full f-stop steps sequences up to 50 flashes flash duration: t 0.1 (t 0.5): min. energy: 1/4000 s (1/8000 s) max. energy: 1/350 s (1/1000 s) modelling light: Halogen max. 300W/120V
