The effect of color space on blend modes

- [Instructor] In this movie,…we'll take a look at the effect of color space,…that is rgb versus cmyk,…on blend modes.…And to make a long story short,…blend modes are designed specifically to work in rgb.…They started in Photoshop after all.…And so, they often don't work nearly as well in cmyk,…especially the brightening modes such as screen.…And that's ultimately the result…of having that additional black ink.…Alright, so, I've got two versions of this file open.…

I'm going to go ahead and switch over…to the comparative file here.…Currently they're both in rgb,…as you can see up here in the title tab.…I'm going to switch this guy to cmyk…by going to the file menu.…Choosing document color mode.…And choosing cmyk color.…And you'll immediately notice…the saturation levels disappearing…in that violent gradient.…And that's just because cmyk cannot express…a lot of these colors.…Now notice that this is a one-way operation.…If I return to the file menu,…choose document color mode,…and choose rgb color again.…

Ill bring back some of the colors in my placed image…