Profoto Giant 150 – Flash Rig Published July 27 at 500 × 333 in Kupo Grip Webinar #2 – Using Grip Equipment to Rig Off-Camera Flash Profoto Giant 150 – Flash Rig This is a shot of 3 SB-900 Flashes rigged in a Profoto Giant 150 Silver Reflector using Kupo’s 3 Way Clamp, Short Baby Studs for 3 Way Clamp, Tilting Umbrella Adapters and Hot Shoe Adapters.