Canon MR-14EXl Instructions Manual page 49

When the MR-14EX is mounted on a
Type-B camera such as the EOS-1 N,
taking flash pictures with TTL autoflash
is just as easy as normal autoexposure
(AE) pictures. In the Full Auto mode, you
can just press the shutter button to take
flash pictures. Or you can set the shutter
speed or aperture while the flash
exposure is automatic. In this way, you
can take various flash pictures.
With the EOS-1 N, the flash exposure is
controlled with the 3-zone, TTL
autoflash system (real-time off-the,;.film
flash metering).
For Type-B Cameras
Basic Flash
Photography