Canon Speedlite 600 EX-RT User Manual (en, zh)

o Color Filter
With EOS digital cameras released 
since 2012, you can also set the white 
balance to <A> for shooting.
Check the resulting image, and 
perform WB compensation as required.
When using a commercially-available 75 x 75 mm filter (3 in. x 3 in.), disable the 
automatic filter detection function (P.Fn-05-1/p.102). If you use a commercially-
available color filter with P.Fn-05-0 set, <l> may be displayed. Shoot a 
picture with the filter attached in the actual shooting environment and set it for 
manual white balance. Take the picture with the white balance set to <c>.
Commercially-available Color Filters
The flash guide number decreases when you use a color filter. When 
performing manual flash or stroboscopic flash with one of the supplied 
color filters, set flash exposure compensation according to the following 
[Low] Orange:+1/3 stop, [High] Orange: +1 stop
When P.Fn-05-0 is set, if you use a commercially-available color filter 
whose color is close to the supplied color filters, <l> may not be 
As shown in step 1 on the preceding page, attach the filter all the way to 
the position of the filter attachment pins on the holder. If the filter is not 
attached correctly, it may not be detected.
When using a filter, the use of full power or continuous flashes is not 
recommended. The filter may deform due to the heat of the flash.
The denser the color of the filter, the more likely it is to deform due to the 
heat of the flash.
With cameras that are not compatible with color temperature information 
transmission (p.20), set the white balance to <c> and shoot in the 
same way as described in “Commercially-available Color Filters”.
When using a commercially-available coloring filter, you do not need to 
set the white balance to <c>.
Attaching the holder does not affect the flash coverage.
Even if the filter deforms due to the heat of the flash, it does not affect its 
compensation effect.
Filters are consumable parts. When the supplied filters have worn out or 
degraded, purchase new genuine filters.
If dirt or dust adheres to a filter, wipe it off with a soft, dry cloth.
If the color filter sensor (p.6) or the holder reflection area (p.11) is dirty or 
dusty, clean it with a blower or similar tool.