What is a preset filter? Preset filters can be used for different types of pictures. For example, if you have a photo that has a picture of beautiful plants hidden by shaddows. You can use a preset filter to easily make the plants appear like it is being hit with sunshine and not shade. Or make a recent photo look like a black and white polaroid taken during the 1950s. This article is about understanding the basics of presets and how to import presets from Dropbox to Lightroom.