Canon 550 EX - Manual (Page 120)

120
Specifications
Slave unit SE mode While the slave unit’s SE mode is in effect, the slave unit turns on when a
cancellation: flash is fired.
The slave unit's SE mode can be canceled by the following wireless operations:
(1) When the master unit’s test firing button is pressed.
(2) When the camera’s FE lock button is pressed.
Power source: Internal power sources:
(1) Size-AA alkaline batteries
× 4
(2) Size-AA nickel-hydride batteries
× 4
* Size-AA lithium batteries
× 4
External power sources: (1) Compact Battery Pack CP-E2
Size-AA alkaline batteries
× 6
Size-AA nickel-hydride batteries
× 6
(2) Transistor Pack E
Battery Magazine TP with size-C alkaline batteries
× 6
Ni-Cd Pack TP (NR-SC Ni-Cd batteries
× 6 in sealed pack)
SE mode: With the power switch set to SE, the Speedlite enters the SE mode as
follows:
• On-camera master unit enters the SE mode after 90 sec. of non-use.
• Slave unit enters SE mode after 60 min. (or 10 min. with CF-4) of non-use.
Custom Functions:
Dimensions (mm) and Weight:
80 (W) x 138 (H) x 112 (D), 405 g
3.1 (W) x 5.4 (H) x 4.4 (D) in, 14.2 oz
• All data are based on Canon’s Standard Test Method.
• Subject to change without notice.
Function
Custom
Function No.
Setting Description
CF-1
0 Enabled
1 Disabled
CF-2
0 Correct exposure, decreased exposure, increased exposure.
1 Decreased exposure, correct exposure, increased exposure.
CF-3
0 E-TTL
1 TTL
CF-4
0 Activate after 60 min. of non-operation.
1 Activate after 10 min. of non-operation.
CF-5
0 Enable SE mode cancellation by master unit for 1 hour.
1 Enable SE mode cancellation by master unit for 8 hours.
CF-6
0 Enabled
1 Disabled
FEB
cancellation
after completion
FEB
sequence
Flash
metering
system
Slave unit
SE mode
activation
Slave unit
SE mode
cancellation
Modeling
flash
08. F073-E (99~) 02.4.1 2:16 PM Page 120