18044-UNF-IK External 1/2″UNF20 Optical TTL-Converter for SONY A9III (camera with global shutter) for IKELITE underwater housing

External 1/2″UNF20 Optical TTL-Converter for SONY A9III (camera with global shutter) for IKELITE underwater housing.                            Installation in 1/2″UNF20 threaded hole on the top of the housing + nut. Compatible underwater strobes: Inon S-220 / D-200/ Z-330 / Z-240, Sea&Sea YS-D130R (including HSS)/ YS-D1/ YS-D3 Mark II/ YS-D3 DUO, Retra Pro MAX/ Pro MAX II (including HSS), Marelux APOLLO III V2.0 (including HSS)/ APOLLO-S (including HSS)/ Apollo-Y (including HSS).
Maximum flash sync speed in TTL mode with global shutter cameras – 1/500 s. Maximum sync speed in M / HSS mode with classic underwater strobes – 1/2000 s. Maximum sync speed in M / HSS mode with Retra Pro MAX and Apollo strobes – 1/ 80000 s