About Light Shaping Devices

Flash compatibility:

  • Inon (Z-240, D2000)
  • Ikelite (125, 160, 161, 200)
  • Sea&Sea (ys110, ys250, YS-D1)
  • Subtronic (alpha, nova, 160pro, mega)
  • Seacam (100, 150, 250)
  • If your flash is not on the list write to us at: develop@retra-uwt.com


The LSD prime is a modular system which enables compatibility with any kind of flash or light. Once you purchase the LSD prime it will fit only one flash model but if you decide to change your flash in the future the mounting module is exchangeable.



  • aluminium anodized housing
  • weight (with 4 masks): 700g
  • body length: 215mm
  • depth rating: over 40m (tested at 6bar)
  • focal length (in water) ≈ 175mm
  • focused light beam diameter (in water) ≈ 60mm
  • 13 standard shapes included
  • optional LSD bag



To find out how the LSD performs in real situations and what it can be used for check out these extensive reviews: