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 / Z-330 / Z-240 / D-200, Sea&Sea YS-D1 / YS-D3 Mark II/ YS-D3 DUO, Retra Pro MAX (including HSS), Marelux APOLLO III V2.0 (including HSS), Marelux Apollo-S (including HSS).

Maximum 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