Canon Macro Twin Lite MT-24EX - Manual (Page 5)

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Thank you for purchasing a Canon product.
The Canon Macro Ring Lite MR-14EX and Macro Twin Lite MT-24EX
are macro flash units compatible with E-TTL II/E-TTL/TTL autoflash
systems.
Read this instruction manual while also referring to your
camera’s instruction manual.
Before using the MR-14EX/MT-24EX, read this instruction manual and your
camera’s instruction manual to familiarize yourself with macro flash operations.
The basic operation is as easy as with normal AE shooting.
When the MR-14EX or MT-24EX is attached to an EOS camera, almost all
automatic exposure control for flash photography is handled by the
camera.
Although the MR-14EX/MT-24EX is an external flash unit, it works
automatically and seamlessly like the camera’s built-in flash.
It is automatically compatible with the camera’s flash metering
mode (E-TTL ll, E-TTL, or TTL).
The camera controls the MR-14EX/MT-24EX automatically in the following
flash metering modes:
1. E-TTL II autoflash (evaluative flash metering with preflash reading/lens
distance information)
2. E-TTL autoflash (evaluative flash metering with preflash reading)
3. TTL autoflash (off-the-film metering for real-time flash metering)
Regarding the camera’s available flash metering modes, refer to the
“External Speedlite” specification in the “Specifications” of your
camera’s instruction manual.
The camera instruction manual’s chapter on flash photography will refer
to cameras having 1 and 2 above as a Type-A camera (compatible
with E-TTL II or E-TTL). And cameras having 3 (compatible with only
with TTL) are called Type-B cameras.
* This instruction manual assume that you are using the MR-14EX/MT-
24EX with a Type-A camera.
For Type-B cameras, see page 41.
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