Canon SPEEDLITE 420EX Instructions Manual page 22

By using multiple Speedites, you can create more sophisticated Ighting
effects. The subject's face can look more three-dimensional or an accent
light can be created. The flash exposure is fully automatic even with
'multiple Speedites,
making i very easy,
'The mult-Speedite system can be wireless oF wire. In a wireless Nash
system, a Type-A camera is attached with a master unt (SS0EX, ST-E2.
(MR. 14EX or MT-24EX) and the 420EX/s set as a slave unt. In a wired
Mash system, multiple EOS-dedicated Speedites (including the 420EX) are
'connected by wired flash system accessories
mane
blest
Reece
'the channel No. in the folowing
Jooping sequence: 1,2. 9, 4
'Set the slave group ID.
Set the slave group IO H you are
using the EOS-10, 1V, 3, 090, ELAN
7/7E, oF 30/38 with two (A and B) or
three slave groups (A, B, and C), i
{you are using a Type-A camova othor
Wireless Flash System
Tha 420EX nas awl lve sting nat eats tobe a wees
'slave Uni. It can thereby be used in an E-TTL wireless autofiash system
together wit a ype TLcompaie) camera anda master nt ane ws, y raed ok
(S80ER ST. Rae or SGEx)
pan ae
the slave group 1.
Speeaites is as 008) sng just one Speedhte mounted onthe camera. '
For details on wireless flash photography or on master unit Pei attri)
peratons, retro the master unit iaruction Booklet
looping sequence' A,B, ©
Sot the master unit. Position the Speediites and fre a
+ tach the SSOEX, ST-E2, MA-14EX test flash.
o€ MT-24EX lo he camera and st += Use the mint-stand (provided) to
5 the master unit. fasten he av nts) wn he
fective wireless transmission
Set the 420€X a8 a slave unit
+ res he est tg tno a ae
+ Set he wireless selector io <SUAVE>
to see te sive uni) re.
+The ash coverage s set o 24mm
ZzAC@) auiomatcaly, Miedo
Set
+ Wien the Dash is ready, the AF-
fe SLAVE |" Znst bean rma bis crea pr
Second cortnuous r o n n i e rn to rn ah oa
= wobascope Rash) We Save ns) 'Bese tat east
Uns tanh mode to<eTT>