Product picture - Quantum Instruments MG2 Dedicated Module - to Power Select Achiever, Cambron, Canon, Cobra, Cullman, National, Nikon, Nissin, Pro Spec, Sakar, Sigma, Sunpak, Vivitar Yashica Flashes with QB1 or QB1c Battery Pack Quantum, Instruments, MG2, Dedicated, Module, to, Power, Select, Achiever, Cambron, Canon, Cobra, Cullman, National, Nikon, Nissin, Pro, Spec, Sakar, Sigma, Sunpak, Vivitar, Yashica, Flashes, with, QB1, or, QB1c, Battery, Pack Click the image to close this page