Compatible with B1X and B1 OCF heads and the D1 and D2 flash heads, the OCF Zoom Reflector from Profoto allows you adjust the beam angle of these lights from 55 to 85 degrees by moving the reflector back and forth along the body of the light. The highly reflective modifier actually boosts the output 1.2 stops. while at just 6" in diameter, it's small enough to fit into the BackPack M, Bag XS, or Bag S Plus while mounted on a head.