Canon MT-26EX-RT Macro Twin Lite - Manual (Page 37)

37
D Combined Use with the Diffuser Adapter
When the diffuser adapter is attached, the effective flash metering range
changes. Take necessary countermeasures such as adjusting the ISO
speed on the camera or applying flash exposure compensation (p.40) as
necessary.
When Quick flash (p.27) is fired with the diffuser adapter attached, taking
the picture after the flash-ready lamp is lit in red is recommended since
the flash output may not be sufficient.
If you attach the diffuser adapter to MT-26EX-RT when using an EOS
DIGITAL camera released up to 2004, set the white balance to <
A >. If
you shoot with < Q >, appropriate white balance may not be obtained.
If the subject is dark (underexposed) when you check the shot image,
perform flash exposure compensation (p.40). You can also increase the ISO
speed when using a digital camera.