Canon SPEEDLITE 540EZ Service Manual page 16

Part 1: General Information
19. Multi-flash Accessories When multi-flash accessories are used, some main unit
20.
Others
functions are lost. (®@ : Function normally)
A-TTL Auto Flash x (Note 1)
Coupling Range Display x
Exposure Confidence Lamp
540EZ Flash Compensation x (Note 2)
Manual Firing / Power Selection
Multi-firing / Condition setting @
Second Curtain Sync x (Note 3)
A-TTL IR Pre-flash
AF Illuminator
Save Energy with SE selected
Note 1: When the 540EZ is used in A-TTL mode immediately before
multi-flash is used, the display remains without change.
Note 2: In the multi-flash state, the flash exposure compensation value
of the 540EZ can be set but it does not function.
Note 3: Though the second curtain syne mark can be set, first curtain
sync mode is actually used.
. When using the EOS-1N or EOS5 in the multi-flash photogra-
phy, flash exposure compensation can be performed by the
camera
(1) Mode memory
Even if the main switch is turned off, the current control mode
and zoom position are stored in memory.
When the battery is replaced in the main switch OFF state, the
settings are continuously stored in memory for about 1 minute.
(2) When the 540EZ is used with the EOS-1 or EOS-1N, the aperture
value display corresponds automatically to 1/2 step and 1/3
step displays.
(3) When the 540EZ with an EOS 630 or earlier camera, through
there is no shoe lock pin fitting hole, the lock pin protrusion is
absorbed by the spring and this permits mounting. This relates
to 16 (1), 1).
(4) Use of a commercially-available slave unit: Possible
* However, it is recommended to confirm operation in combina-
tion with the actual unit.