Canon 580EX - Speedlite II - Hot-shoe clip-on Flash Instruction Manual page 53

Tran%rnissiori range
"Y 1
(Apprax .)'
Outdoors, 5 2 . 15 m 139.4 - 49 .2 ft,
Indoors : 8 - 10 m : 26 .2 - 32.8 ft
Reception angle : -40` horizontal, t3Q- v e r t i c a l
Controllable slave groups:
3 (A, H, and C)
Flash ratio control :
1 :8 - 1 :1 - 8:1 in 112-stop increments
Slave-ready indicator : AF-assist beam blinks
Modeling flash-
Fired with came ra'sdcpth-of-field pry/iew button
" CUStOttI Functions :
14 (2f1 settings)
-A F-Assist Beam
I .inkable AF points
1 .45 AF paints (28mm or longer focal length)
Effective range [Approx .]-
AF renter : O .G - 10 m/2-0 ~ 32 .8 it,
Periphery : 0 .6 . 5 m .120 - 18 .4 f[
" Power Source
Internal power Four sire-AA alkaline
Size-AA Ni-MM or lithium batteries also possible
Battery life
{Apprnx . flash count}'
100 - 700 flashes with size-AA alkaline batteries}
Battery life
[Aaprex. wlreless,ransmissicns] :
1500 transmissions [Master unit firing disabled, size-AA
alkaline batteries]
Power saviny :
power off after 90 sec . or idle operation (60 min . if se[ as
slave)
External powcsr sources : Compact Battery Back CP-E3
" Dimensions
(WxH x17) :
76x134x11Amm13 .0 x5 .3x4 .5in
" Weight :
375 g : 13.2 oz (Speedlite only, excluding batteries)
a AEI specifications are based on Canon's testing criteria .
s Product specifications and external appearance are subject to change without
notice .
51