What is the closest color temperature of 5d2 to the primary color?

Color temperature is one of the "white balance", because it is more convenient, so now everyone uses color temperature to adjust the color of photos.

This involves many basic problems of photography. I suggest you learn the basics of photography well. Otherwise, I'll explain it to you in detail, but you still don't understand.

Color temperature has a value, and this value has only two colors, one is yellow and the other is blue. Blue and yellow are two completely opposite colors. The higher the k value, the yellower the photo. For example, the photo you took at 5500K is blue, so you should continue to increase the color temperature, for example, to 5800K K. Because the color temperature value of each light source itself is different.

Give you two examples:

On cloudy days, when shooting outdoors in natural light, the color is around 4500k, which can basically restore the color of the photo.

At home, or in the studio, I use tungsten lamp lighting, because tungsten lamp is very yellow. At this time, my color temperature will be around 2900K to maintain the color balance of the photo and try to ensure that the photo will not be too yellow by tungsten lamp.

Attention! ! The color temperature can only be adjusted to yellow and blue. At this time, if your photo is magenta or cyan, you should adjust the color by matching the color temperature and white balance offset, where magenta and cyan are opposite colors, just as yellow and blue are opposite colors.

(It's a bit complicated for non-professionals. If I can't understand it, I'll use automatic white balance, which will be better. )

Besides, the neutral color you mentioned has nothing to do with the color cast of your photo. This is one of Canon's six photo styles. I suggest you use the standard mode when you are not familiar with these style features ~

I've tried to make it as simple as possible. To play SLR, you still have to learn the basics first. This is the last word ~