SeaFrogs 40M/130FT Underwater camera housing for Sony A7S III

Compatible lenses with Stand Flat Tube:
Sony FE 90mm f/2.8 Macro G OSS (Manual focus available with focus gear)
Sigma 35mm f/1.4 DG Art E-mount (Manual focus available with focus gear)
Sony FE 24-70mm F4 ZA OSS (Autofocus only) Works from 35mm to 70mm
Sony FE 24-105mm F4 G OSS (Autofocus only Works from 28mm to 65mm 

Materials:
Polycarbonate ABS plastic Optical glass Stainless steel EPDM rubber O'ring sealed buttons with spring

Key features:
Vacuum Pump System port
High-quality optical viewfinder
Inbuilt leak detection sensor
Interchangeable port system
Synchro cable port
Fiber optic port
Multi-coated optical glass standard flat port
Stainless steel mounting plate 1/4" Thread
Reinforced metallic bottom plate 

Package Including:
1 x Underwater housing for Sony A7S III with PL90 long Flat Port
1 x O-ring
1 x Wrist strap
1 x Neck strap
1 x Les protective cover
1 x Clean cloth
1 x User manual