A lens holder attached on an Arm etc. to carry AD series/28AD series attachment lens. Compatible product is sandwiched between Lens Holder [screw] and Lens Holder [hole], or Lens Holder [screw] and Lens Holder Base of this product. The Lens Holder [hole] is usable as like "AD Lens Holder for Float Arm" as well.
●When attached on single side
38g (1.3oz) [air] / approx.12g (0.4oz) [underwater]
●When attached on both sides
57g (2.0oz) [air] / approx.18g (0.6oz) [underwater]
Compatible with UW-Lighting, Ultralight, INON and Nauticam arm systems.