| Compatibility With Existing EOS Gear
Speedlite 600EX-RT will replace the current 580EX II as Canon’s #1 flash unit. To answer some vital compatibility questions and concerns: |
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| Some of the many compatible EOS digital SLR and PowerShot cameras |
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1) It is completely compatible for E-TTL automatic flash exposure with any EOS digital SLR that’s ever been made.
- Also compatible for E-TTL with any PowerShot that has an accessory shoe (PowerShot G12, G11, SX-series, and so on).
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EOS A2E and EOS-1
film cameras |
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2) It is backward-compatible with older TTL-type film cameras that don’t use the more recent E-TTL flash metering system.
- This includes cameras like the 35mm
EOS A2/A2E, original EOS-1 film camera,
and
so on
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| Canon EX-series Speedlites |
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3) It is completely compatible with Canon’s existing, optical-based Wireless E-TTL system.
- It can be mixed and matched with other
EX-series Speedlites off-camera as
“slave units”
- It can act as an on-camera “master unit” to trigger any existing EX-series Speedlites as slave units
- Users do not have to replace all of
their flash units, but can simply add
the Speedlite 600EX-RT to their
flash arsenal
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| Radio-based mode |
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| Optical-based mode |
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4) It offers both traditional optical-based Wireless flash, and introduces the option of entirely new radio-based Wireless E-TTL as well.
- These are two totally separate operation methods:
- Radio-based wireless flash does require use of the 600EX-RT, with optional use of the ST-E3-RT transmitter.*
- Older EX-series Speedlites are not compatible with Canon’s radio wireless transmission — they are limited to optical wireless control only.
- It’s not possible to mix the new radio-based Wireless control with Canon’s traditional optical-type Wireless flashes in the same image.
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