Canon 580EX - Speedlite II - Hot-shoe clip-on..., Service Manual, Page: 11 / 97

General Information
■Speedlite control with the EOS-1D Mark III's menu
When the 580EX II is attached to the EOS-1D Mark III, you can set the Speedlite function
settings and Speedlite Custom Functions with the camera's menu. You can also cancel all
the Speedlite Custom Function settings with the camera. However, if the flash exposure
compensation is set with the Speedlite, you cannot set it with the camera. Except for the
flash exposure compensation, if the settings are set with both the camera and the Speedlite,
the last setting will be effective.
Fig. 003 EOS-1D Mark III's External Speedlite control menu
3) New Accessories
■CP-E4 (Dust/water-resistant external power pack)
Together with the 580EX II and EOS-1D Mark III, the
dedicated external power pack is also dust/water-
resistant. This makes the entire flash system dust/water-
resistant. Other than the improved dust/water-resistance,
the power pack's performance is the same as the previous
Compact Battery Pack CP-E3.
When CP-E4 is used with 580EX II, flash interval
and flash count are as follows (with size-AA alkaline
batteries).
Flash interval: Approx. 0.1 to 1.2 sec.
Flash count: Approx. 440 to 3000 flashes
Dimensions (W×H×D): 71×171×26 mm/2.8×6.7×1.0 in.
Weight: 220 g/7.8 oz.
■OC-E3 (Dust/water-resistant Off-Camera Shoe Cord)
Together with the 580EX II and EOS-1D Mark III, the
Off-Camera Shoe Cord is also dust/water-resistant. This
makes the entire flash system dust/water-resistant. Also,
the OC-E3 employs the same quick-lock system on the
mounting foot as the 580EX II. This improves reliability
and operation ease.
Dimensions of camera end (W×H×D)*:
38×32×50 mm/1.5×1.3×2.0 in.
Dimensions of Speedlite end (W×H×D):
30×29×35 mm/1.2×1.1×1.4 in.
* Excluding the dust/water-resistant adapter.
Weight: 105 g/3.7 oz.
Fig. 004 CP-E4
Fig. 005 OC-E3