Photoshop is a tremendously intricate and complex application, and as such, there are many ways to accomplish any specific task. The Blend If function is one of the program's more useful tools, but it is a bit hidden and does not always get the attention it deserves. This helpful video tutorial will show you five different ways to use Blend If for editing landscape photos.
Coming to you from Greg Benz Photography, this great video tutorial will show you five different ways to take advantage of Photoshop's Blend If feature when editing landscape images. Blend If works by masking one layer over another based on the grayscale luminosity or the luminosity of one of the three color channels. This allows you to quickly and precisely do things like add a bit of a punch to a sunset or the like. Just remember that Photoshop allows to not only control the threshold, but add feathering as well, making it easy to build in an imperceptible transition to make the effect more natural. Check out the video above for the full rundown from Benz.
And if you really want to dive into landscape photography, check out "Photographing The World 1: Landscape Photography and Post-Processing with Elia Locardi."