This 4-stop, 100 x 150mm X-PRO Square Soft-Edge Graduated ND Filter with Frame from K&F Concept is made for the X-Pro Square Filter Holder System. This soft edge graduated filter allows a selective area of density to be added to an image, making it an essential tool for enhancing landscape images. This filter's soft edge allows the area above an uneven horizon line, like a city or wooded area, to be darkened by four stops to make the sky more pronounced.

Made of high-quality optical glass, this 100 x 150mm, 2mm thick filter features 28 layers of multicoating for optimal light transmission without adding any color cast. The coating also protects the filter from water, oil, minor scratches, and abrasions. It features a protective frame with large tabs that make it easy to install and remove from the X-Pro filter holder system.