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. Thank you for purchasing a Canon product. This Instructions booklet assume t h a t a Type A camera is used with the ST-E2. ' With Type H cameras (EOS cameras except 'I'ype A models), the ST-E2 can be used only for manual flash and multi-flash photography. See pages 23 to 27 in t h i s booklet a n d t h e Speedlite 550EX Instructions. PY Speedlite Transmitter ST-E2 is a wireless transmitt e r which can control up to two Speedlite 550EX groups set as slaves.
Contents PY 1. Nomenclature ................................................................................................................ 22 23 2. Readying the ST-E2 ....................................................................................................... 3. Readying the 550EX (Slave Setting) ............................................................................ 25 4. Basic Wireless E-TTL Autoflash Operation ................................................................. 26 5.
1. Nomenclature Front Rear Battery compartment cover ,+I"-assist beam emlttor PY Flash ratio cuntrol lamp Channel intl~cat,~r O < PILOT > I'ilot. I:im Shoc l t ~ slider k trnnsmission button C High-speed synr (FI' fl:~: < 0 ,:Turns off thr 11rnr.er. < I >:Turns on thr po\rer. < HOLD >: Retains t h e c u r rent settings u,hilo thr switch position is I . All lr:,nsmiLter controls except the tPet transmission button ;ire ~lis:$blcd.
2. Readying the ST-E2 (2) Attachment to the (I) Installing the Battery Camera 1 Slide the battery compartment cover as shown by the arrow C and remove. When to replace the battery Replace the battery if it takes 30 sec. o r longer for t h e red pilot l a m p to light a f t e r you s e t t h e main switch to < I > or < HOLD >. O Use one l i t h i u m 2CR5 b a t t e r y (sold separately).
Readvine the ST-E2 (3) Turning On the Power transmission is possible, 2 When the pilot lamp lights in red and the 5 icon lights in the camera viewfinder. PY The hot shoe on t h e EOS 650, EOS 620, EOS 750, a n d EOS 850 will not couple w i t h t h e lock pin. The ST-E2 can still be attached to these cameras, but it cannot be locked onto the hot shoe. When the 5 icon lights in the 0 camera viewfinder, it indicates that the ST-E2 is able to transmit. When Speedlite 550EX is rechareed and readv to fire.
3. Readying the 550EX (Slave Setting) (4) Channel Setting (2) Channel setting RATIO S e t t h e w i r e l e s s selector t o SLAVE >. H e r e i n a R e r , a S p e e d l i t e 5 5 0 E X s e t to t h i s mode will be called a "slave." 1< O To prevent wireless signals from being transmitted to unrelated S p e e d l i t e 55OEX u n i t s i n t h e vicinity, you can set a channel different from the one used by the unrelated Speedlite 550EX units. One of four channels can be set.
4. Basic Wireless E-TTL Autoflash Operation . the < b u t t o n After t h e ST-E2 a n d s l a v e a r e ready, they can work w i t h i n t h e a r e a 3 todpress regster the channel N ~(the , shown below for easy wireless E-TTI.autoflash. isplay stops blinking and SEL/SET, For explanatory purposes, t h e EOS-3 will be used a s t h e sample camera here. ( I ) Positioning of ST-E2 and slave O PY Attach t h e slave to t h e mini s t a n d (equipped with tripod socket) which comes with t h e 550EX.
Basic Wireless E-TTL Autoflash Operation (2) Camera operation Set the camera for normal flash operation. (3) Checking the ST-E2's pilot lamp and slaveready status (4) Wireless operation test Check that the ST-E2's pilot lamp is on and that the slave is ready. O lamp is off. (If necessary, press the button to turn it off.) If the flash ratio control lamp is on, t h e Speedlite may not fire or a correct exposure m a y not be a t t a i n e d .
Basic Wireless E-TTI. Autoflash O ~ e r a t i o n (5) Taking the picture and flash confirmation closer to t h e s u b j e c t a n d r e p e a t steps (2) to ( 5 ) . C O W h e n you press t h e s h u t t e r butt o n c o n ~ p l e t e l y a, w i r r l c s s s i g n a l i s t r a n s m i t t e d to t h e s l a v e , t h e n t h e slave fires a preflash a n d t h e n t h e m a i n f l a s h w h e n t h e p i c t u r e is taken.
45. Wireless Multi-Flash E-TTL Autoflash Operation a The flash ratio can be set only when the camera is an EOS-3. The flash ratio cannot be set with an EOS Elan IVIIE, EOS 50/5OE, EOS Rebel G/500N, EOS IX or EOS K71X Lite. Sample Multi-Flash Setup with Uniform Flash Output In t h e sample flash s e t u p shown below, t h e lighting on t h e left will be b r i g h t e r t h a n on t h e r i g h t of t h e subject. the EOS-3, make sure the 0 With S T - E 2 ' s f l a s h r a t i o control lamp is off.
Wireless Multi-Flash E-TTL Autuflash Operation Sample Multi-Flash Setup with Slave ID and Flash ti^ settings PY 15ni / 49.2ft Indoors C O In t h e example shown for "MultiF l a s h with a Uniform Flash Output," the lighting balance (flash ratio) was adjusted by placi n g t h e slaves a t different dist a n c e s t o t h e s u b j e c t . However, with "Multi-Flash with Slave ID and Flash Ratio Settings," the flash ratio can be adjusted without moving the slaves.
Wireless Multi-Flash E-'lTL Autoflash Operation (1) Setting the Slave ID by E2. Be sure to set the slave ID to A or B. Press t h e slave's < SEL/SET > button to select < >. O Set the slave ID to A for the slave on the left of the camera. and to B for the slave on the right of the camera. If the slave's ID is set to C, it 0 cannot thc SThe controlled PY With the wireless control of multiple slaves, you can set the flash ratio and specify the main flash and fill flash by assigning a slave ID.
Wireless Multi-Flash E-TTL Autoflash Operation (2) Setting the A:B Flash Ratio Position the ST-E2-attached camera and the two slaves to obtain t h e desired lighting effect. See page 26. O PY The flash ratio between slave A and slave B can be set to specify the main flash and fill flash. The flash ratio can be set from 8:l to 1 and from 1 to 1:8 in half-stop increments. In terms of exposure stops, it ranges from 3:l to 1 and from 1 to 1:3.
6. Applications Even with a wireless multi-flash system, you can use high-speed sync (FP flash), FE lock, and flash exposure compensation in the same way a s with a camera-attached 650EX.
7. Troubleshooting Problem Soon after thc power is turned on, the indicator lamp turns on' Although t h e 5 icon i s lit in t h e viewfinder, t h e slave does not fire. Solution Page Either press the shutter button halfway or press 24 the < PILOT > button. When the slave is ready to fire, ~ t s A12-assist beam 27 emltter blinks Turn off the flash ratio control lamp bcforc takinp the picturr~. PY Probable Cause If t h e power is turned on and the ST-E2 i s not used for 9 0 scc.
I Specifications 55OEX-dedicated, clip-on Speedlite transmitter with direct 4 Type A EOS cameras (E-TTL at Typo B EOS canicras IMariual f .Channels 1 Flash Ratio Control For A R ratio I 8 to 1:l lo 8 : l . in half-step incremrnts or 18 strps High-Specd Sync tFP flash) Enablcd w ~ t hh~gh-speedsync modr 5 " . Slave Operation Cunfirmation With trst transmtssion hutton. "Slave A fires followed by slavr I3 at llfi4 output.
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