Improved dust- and water-resistance, body strength, and the ability to control flash functions and settings from the camera menu (EOS-1D Mark III or later). Other features include improved communication reliability through its direct contacts, and recycling time is both 20% shorter than the 580EX and is completely inaudible.
If you need the flash "Hot Shoe Stand" please let us know in the special instructions. Requires 4 AA batteries, which are not included with the rental.
***If USED with a Quantum battery and the flash gets overheated leading to a malfunction it will be considered negligence and the damage waiver will not cover the repair. Also improperly inserting the CZ cable will lead to shorting out of the flash and will be also considered negligence and not covered by the damage waiver.***
Manual can be found HERE