Marelux Smart Optical Flash Tube (SOFT) Main Body (With Dock) - S&S YSD2

Smart Optical Flash Tube (SOFT) Main Body (With Dock). Marelux has Just developed a new gadget for follow macro underwater photographers, SOFT-Smart Optical Flash Tube. This Device can be used on various papuler strobes, with an aiming light automatically switching off when strobe flashes. Light shape can be adjusted by a built-in aperature, which is controlled by an external dial. Focus point is 170mm from the end of the tube and the diameter is 2mm to 60mm.