Sigma 24-70 F2.8 DG DN II (Autofocus only, Manual zoom gear not included,purchase here)
Materials :
Polycarbonate
ABS plastic
Optical glass
Multi-coated 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
Dual Fiber-Optic port (Sea&Sea type)
Multi-coated optical glass standard flat port
Stainless steel mounting plate 1/4" Thread
Reinforced metallic bottom plate
In order to connect an external strobe with this housing, it will require to use a Dual 5-Pin Sync Cord (purchase here) or a Single 5-Pin Sync Cord (purchase here), or a Fiber-optic cable (purchase here)