Canon 40D Training Wei himself m? Me cr??? Alignment Adjustment

I think a more useful demonstration would have been to shoot the white card under a strongly shifted light, show that it’s color cast, actually do the custom white balance operation, then take another shot of the white card and show that it comes out white..

Correction to the above comment; If using a Speedlite you have to WB with it, or the images will be strong blue. If you’re going to use bounce flash, WB with that b/c whatever you bounce off of will add its own color cast as well.