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Designed to work with all EX Speedlite flash units, the E-TTL II flash algorithm provides photographers
with consistently accurate flash metering, even with tricky subjects and ambient lighting conditions.
With previous systems, recomposing a shot after locking focus could occasionally result in incorrect
exposure. E-TTL II remedies this by ignoring the active focusing point. Instead, distance information
(where applicable) and pre-flash information are evaluated from multiple metering zones immediately
before the exposure occurs. To achieve accurate measurement in problematic environments, the system
gives less weight to readings from reflective objects in the scene – such as a mirror, white china, or a
bride's wedding dress. E-TTL II gives photographers the confidence of accurate flash exposure in scenes
that confuse conventional metering systems.
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Macro Twin Lite MT-24EX
• Attaches to all Canon EF Macro lenses
(EF 180mm f/3.5L requires Macro Lite Adapter 72C).
• Twin flash heads can be rotated over 80° angle around lens
in 5° increments.
• Heads can be swivelled, bounced or removed from mounting ring
for added control.
• Powerful Guide Number of 24 (m/ISO 100).
• Advanced features including FEL, Hi-speed sync, and FEB.
• Full E-TTL II automatic flash control with EOS-1Ds Mark II,
1D Mark II N and 5D.
• Incandescent focusing lamps and two different types of 1 second
modelling flash allow easy focusing and previewing of lighting effects.
Macro Ring Lite MR-14EX
• Twin-tube flash unit designed for close-up photography
with EF Macro lenses
(EF 180mm f/3.5L requires Macro Lite Adapter 72C).
Flash tubes can fire together or independently.
• Supports E-TTL II Wireless Autoflash in conjunction with one
or more compatible EX Speedlites.
• Incandescent focusing lamps and two forms
of modelling flash permit preview of lighting effects.
• Illuminated LCD panel for easy flash settings
in any lighting condition.
Speedlite Transmitter ST-E2
• Dedicated transmitter to control unlimited number
of compatible slave flashes.
• Compatible with Speedlite 580EX, 550EX,
430EX and 420EX.
• Controls compatible slave units up to
10 metres outdoors and 15 metres indoors.
Speedlite 580 EX
Subject
Camera with
transmitter
Speedlite 580EX
• Recycling time approximately 25% faster than
550EX.
• Even exposure from centre to corner of frame.
• High maximum guide number of 58
(m/ISO 100) at 105mm.
• Auto conversion of flash coverage with
compatible digital SLRs.
• White Balance information communicated
instantly to compatible digital SLRs.
• Full 180° swivel in either direction.
• AF-assist beam compatible with all
AF points on every EOS SLR.
• Select Dial for easy inputs and user control.
Speedlite 430EX
• LCD panel on rear of flash for enhanced
user control.
• Wide-angle pull-down panel covers
14mm lens on a full-frame camera.
• Maximum guide number of 43
(m/ISO 100) at 105mm.
• Auto conversion of flash zoom coverage
with compatible digital SLRs.
• White balance information communicated
instantly to compatible digital SLRs.
• Bounce upward to 90°; swivel right (90°)
and left (180°).
E-TTL II: Smarter Flash Performance
© Erik Refner, Denmark
© Dolph Cantrijn/Hollandse Hoogte, The Netherlands
