Compatible Products: Canon USA imagePROGRAF iPF780,Canon USA imagePROGRAF iPF680,Canon USA imagePROGRAF iPF685,Canon USA imagePROGRAF iPF770,Canon USA imagePROGRAF iPF770 MFP M40,Canon USA imagePROGRAF iPF780 MFP M40,Canon USA imagePROGRAF iPF785,Canon USA imagePROGRAF iPF785 MFP M40
Specifications: Type: Ring Lite, twin circular flash tubes, and separate Controller Unit
Flash Control System:
Control in E-TTL Mode: FP Sync, FE lock, Flash +/- compensation, Flash Exposure Bracketing
Control in Manual Mode: Flash +/- compensation
Ratio Control in Manual: L:R tubes (A:B); 8:1 - 1:1 - 1:8 in 1/2-stop increments
Custom Functions: Twelve (in addition to any on camera), set on flash LCD; three Personal Functions
External Power Source: Compact Battery Pack CP-E4
Guide Number: 45.93' (14 m) ISO100
34.45' (10.5 m) ISO100
Recycling Time: Approximately 0.1 - 5.5 seconds
Power Source: 4 AA batteries in Controller (Alkaline, NiCd, Lithium and Ni-MH type AAs are OK)