Canon SPEEDLITE EL-1 Advanced User's Manual page 91

2.
Take the picture.
Set the camera's white balance to <
With EOS DIGITAL cameras released in and after 2012, you can also
set the white balance to <
EOS REBEL T5/1200D).
Check the resulting image and perform white balance correction on the
camera as required.
Caution
The flash guide number decreases when you use the color filter. When performing
manual flash or stroboscopic flash, compensate the flash output by approx. +1/3
stop with the "Low density" filter and by approx. +1 stop with the "High density"
filter.
Do not use a commercially-available color filter in combination with the provided
color filter.
Note
With cameras that are not compatible with color temperature information
transmission ( ), take a shot and set it for manual white balance using the color
filter in the shooting environment, set the white balance to <
When shooting with a flash with a color filter and wide angle lens attached, the
peripheral light intensity may drop.
If dirt or dust adheres to the color filter, wipe it off with a soft, dry cloth.
You can also attach the bounce adapter (
If you want to shoot with the ambiance of tungsten-light (warm color cast), set the
white balance compensation toward the amber side.
>, then take the picture.
> for shooting (except with
) when using the color filter.
91
>, and shoot.