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



  • 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
  • LSD bag is optional



The LSD Prime is a modular system which enables compatibility with many flash models. The mounting module is made for a specific flash but the lens system is always the same. The mounting module is easily exchangeable and we have many mounting modules readily available. Contact us at: develop@retra-uwt.com if you wish to change yours. 





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