不能用24-70 f2.8gm/ 16-35 f2.8gm
 
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 
Underwater housing for Sony A7S III
Standard flat port
Zoom gear for 28-70mm lens
User manual 
Spare O'ring (150x4mm, back)
Spare O'ring (DDP V.1 / V.2)
Spare O'rings x2 for VPS plug
Silicone grease 5ml packet
Shoulder & wrist strap