Photography is all about light and using a tool that enables us to capture it in the form of fixed images. The most usual tools are a camera and a lens, but there is another little friend that can help us manage light into the most creative ways. These tools are called filters, and they have been around since the film era. There are several filters but today I want to talk about some great filters you can use as a landscape photographer. These can be divided into two big groups, Neutral Density filters (also known as ND filters) and Neutral Density Graduated filters (also known as ND Grads). The main difference here is that ND filters have a constant factor for reducing a certain amount of stops, and graduated ND filters have a 50/50 setting when it comes to reducing a certain amount of light.