There are a few ways to add luts to Photoshop. One way is to use the LUT filter. Another way is to use the Layer Mask tool. The third way is to use the Gradient tool. The first way is the easiest way to add luts to your photos. To start, open Photoshop and click on the LUT filter in the Filter menu. Then, select a color from the Colors palette and click on OK. The next time you open a photo, you will see a new layer called “LUT.” This layer will have three fields: “Name,” “Description,” and “Usage.” In Name field, you can type in a name for your lut. For example, if you named your lut “BlueLite,” then you would type that into the Name field of this new layer. In Description field, you can write a brief description of your lut. For example, if you named your lut “SaturationLite,” then you would write that into the Description field of this new layer. In Usage field, you can choose whether or not to save this new layer as a file or keep it as an empty image. If you choose to keep it as an empty image, then Photoshop will create a file called “LUT_Description_Empty” with this name in it when it creates the photo’s layers after saving it. The second way is also easy but less common: To add luts to photos using the Layer Mask tool instead of using the LUT filter. To start by clicking on one of your photos in Photoshop and choosing Edit > Layer Mask > Add Mask (or press Command-M). Then, select one of your colors from the Colors palette and click on OK again. The next time you open a photo, you will see two new masks: one called “LIMIT” and one called “COLOR.” These masks will have identical fields except for their names: