Today I will show you how to create black & white image in 3 steps using Adjustments Layers in Adobe Photoshop CC

Open your image you want to work with

1: Adjustments > Black and White

Using the black slider of each to the right/left you will  modify influence of the colors  in the resulting of black & white image.

2: Highlight t your image layer ( Layer 1 )  > Adjustments > Selective Color

Change number of the black slider of each color ( move the slider to the left or right)

 

3: Adjustments > Color Lookup >2Strip.look from the 3DLUT File ( selected by default )