What are the different types of lens filters, and are they useless now with editing software? This guide will walk you through what they are for, and why they are still good. http://xlightphotography.com/types-of-lens-filters/
4) ND FILTER • Neutral Filters (ND) are like pieces of sunglasses. • They block out excessive brightness, and allows you to capture more recovered details. • Another landscape photographer’s favorite.
5) IR FILTER • Infra-red (IR) filters are kind of specialized. • They block all visible light and only allow IR to pass into the camera. • This usually result in a dark red photo, but after some editing to remove the red tint, you will get a nice surreal photo.