What makes a great landscape photograph? An interesting subject and artful framing are important, but even more important is the quality of light. If the exposure is poor, photographs of the most beautiful scenes, thoughtfully composed, will still be unusable. Long exposure of ocean waves made possible by using a neutral density filter to reduce the light for a slower shutter speed. Photo by Warren Wise Landscape Photography. Optical filters are the key to controlling the light that your camera records. Though today’s image processing software is incredibly powerful, there’s no digital substitute for the control that optical filters provide when making your exposures. For example, optical filters can enable you to use much slower shutter speeds than you otherwise could...
