The Marelux Lumilink, which can be installed on the fiber optic port of your camera housing, both encrypts and amplifies the signal received from your housing’s internal optical flash trigger. It then transmits it via optical signals. Capable of extending the range of optical signal transmission, the Lumilink has an effective transmission distance of 2m underwater and an optical signal emission angle of 160 degrees. Made of anodized aluminium alloy, it measures 82mm in width, 70mm in height, and 64mm in depth.

Marelux has developed a new gadget for fellow underwater macro photographers; SOFT-Smart Optical Flash Tube, which can be mounted on a range of popular flashes.

This unit has a built-in focus light that automatically turns off when the flash goes off.

Light shape can be adjusted by a built-in aperture, which is controlled by an external dial. The focus point is 170mm from the end of the tube and the diameter is 2mm to 60mm.