Canon Speedlite 430EX III-RT - Manual (Page 102)

102
This section describes the available and unavailable functions when
using the Speedlite 430EX III-RT/430EX III with a Type-B camera (EOS
film camera supporting A-TTL/TTL autoflash).
Although < a > is displayed on the flash LCD panel when the
Speedlite is attached to a Type-B camera, autoflash is not
available.
If you take a picture in this status, the flash will always fire at
full output.
Functions available with Type-B cameras
Manual flash
Second-curtain sync
Functions not available with Type-B cameras
E-TTL II/E-TTL/TTL autoflash
Speedlite flash exposure compensation
FE lock
High-speed sync
Quick flash
Modeling flash
Wireless flash shooting with radio transmission
Linked shooting
Using with a Type-B Camera