Canon EOS REBEL T2I Brochure - Page 24

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Wireless Flash Photography

Canon's EX series Speedlites have made multiple-flash photography simple, wireless

and automatic. Using the Speedlite 580EX II, Macro Speedlite MR-14EX, Macro Twin

Lite MT-24EX, or the Speedlite Transmitter ST-E2 as a master unit, wireless signals

are transmitted to an unlimited number of Speedlites 580EX II or 430EX II, creating

myriad possibilities for lighting, no matter the location. For the ultimate convenience,

both the EOS 7D and EOS 60D have an Integrated Speedlite Transmitter, which has

the transmitting features of the Speedlite 580EX II, allowing users to wirelessly

control EX series Speedlites and doing away with the need for an external master unit.

Bounce

(A)

Camera

with Master (A)

1. Set up the main flash unit – To

2. Add an auxiliary flash unit –

prevent the strong shadows a direct

Remaining shadows were weakened by

flash would produce, the main flash

bouncing an auxiliary flash (A) off another

was bounced off a wall near the

wall to hit the subjects from a direction

camera to soften the lighting.

opposite that of the main flash unit.

(B)

Camera

with Master (A)

A:B=1:2

Bounce

Sample Photo Analysis – Three flash units provided illumi-

nation. The light from the master flash unit (A), a Speedlite

580EX II mounted on the camera, was bounced off the wall

to soften its intensity before reaching the two violin makers.

A slave 580EX II (B) was set far enough away on a desk to

be pointed directly at the statue, and another 580EX II (B)

was used to light up the overall office. Based on the results

displayed on the camera's LCD monitor, the brightness of

the master flash unit was halved to achieve natural lighting.

E-TTL/E-TTL II Wireless Autoflash Control

Up to three groups (for main, fill and background)

of slave units can be set up for comprehensive

control of flash lighting. The Speedlite slave units

can be assigned to group A, B, or C, with output

ratio between groups A and B adjustable from

8:1 to 1:1 or 1:1 to 1:8. The output of the group C

can be adjusted through flash exposure compen-

sation. Superb lighting is simple thanks to the

E-TTL/E-TTL II autoflash system which controls the

total flash output to ensure consistently correct

exposure. Both the EOS 7D and EOS 60D, with

their Integrated Speedlite Transmitters, can control

and trigger external Speedlites wirelessly through

their built-in pop up flash. The EOS 60D can wire-

lessly control the ratio between A and B groups,

along with the built-in unit's own output, while the

EOS 7D can control A, B, and C groups. Both

cameras also feature a modeling flash feature for

previewing the output of your external Speedlites,

Bounce

available by pressing the depth of field button. Even

(B)

with multiple Speedlites, the modeling flash fires

according to the ratios you have set. E-TTL/E-TTL II

Bounce

(A)

wireless autoflash also supports most other

Speedlite features, such as FE Lock, FP Flash,

Camera

with Master (A)

Flash Exposure Bracketing/Compensation, and

3. Add another auxiliary flash unit – To

Stroboscopic Flash. Finally, for macro shooting,

improve gradation and contrast, another

auxiliary flash unit (B) was set up behind

the Macro Ring Lite MR-14EX and Macro Twin Lite

the subjects. Its light was bounced off the

MT-24EX can be used as master units as well.

back wall to accent key details of the image.

Amazing Flash System

Canon offers a full range of Speedlite flash units compatible with EOS System

cameras for a wide variety of applications and photographers' needs. They range

from simple, economical flashes to high-power, highly advanced Speedlites for

professional use.

Speedlites

Speedlite 580EX II

Speedlite 430EX II

• Auto conversion of flash coverage with

• Superb build quality, including a metal foot

compatible EOS digital SLR cameras.*

for added strength.

• Superb evenness of exposure, center to

• Approx. 20% faster recycle time, compared to

corner of frame.

previous 430EX.

• Higher max. Guide No. at 105mm setting (190

• One-touch quick-lock mechanism for easy

ft./58m at ISO 100).

attaching/detaching flash from camera.

• Auto conversion of flash coverage with

• Full flash control possible on camera menu, with

compatible EOS digital SLR cameras.*

compatible EOS digital SLR cameras.

• White Balance info communicated instantly to

• Virtually silent flash recycle.

compatible EOS digital SLR cameras.*

• Full 180˚ swivel in either direction.

• Full swivel, 180˚ in either direction.

• Zoom flash head covers range of 24–105mm;

• AF-assist beam compatible with all AF points

max. Guide No. 141 ft./43m at ISO 100.

on every EOS SLR.

• Dust- and water-resistance to match the

EOS-1Ds Mark III.

Speedlite 270EX II

Speedlite 220EX

• Ultra-compact, ultra-lightweight flash unit.

• Smallest EOS Speedlite, with full E-TTL

compatibility.

• Vertical bounce capability up to 90 degrees.

• Covers lenses as wide as 28mm (full-frame

• Flash release function allows wireless shutter

cameras) or 17mm (APS-C size sensors).

release from the flash with a 2-second delay for

flash repositioning.

• Hot-shoe lock with a single motion.

• Slave function allows the flash to be triggered

• Flash confirmation lamp (after firing).

wirelessly.

• Fast recycle time, and Save Energy (SE)

• Flash coverage can be switched between Normal

feature.

and Tele settings.

• Max. Guide No. at Tele setting: 89 ft./27m at

ISO 100.

* Feature compatible with EOS-1Ds Mark III, 1D Mark IV, 1D Mark III, 1Ds Mark II, 1D Mark II

Rebel T3i, Rebel T2i, Rebel T3, Rebel T1i, Rebel XSi, Rebel XS, Digital Rebel XTi and Digital Rebel XT only

SPEEDLITES

Speedlite 320EX

• Built-in LED illuminates nearby subjects in

dim light – especially useful for video.

• Versatile vertical and horizontal bounce

capability.

• Flash release function allows wireless shutter

release from the flash with a 2-second delay for

flash repositioning.

• Wireless Slave function supports three groups

and four channels.

• Two flash coverage settings, selectable by

extending or retracting flash head.

• Max. Guide No. at Tele setting: 105 ft./32m at

ISO 100.

• Fast recycle time of approximately 2.0 seconds.

, 1D Mark II, 5D Mark II, 5D, 7D, 60D, 50D, 40D, 30D, 20D, 20Da,

(some earlier models require firmware upgrade).