ND filter names can look confusing because manufacturers may describe the same strength using stops, a filter factor, or optical density. An ND8 filter, for example, is normally a three-stop filter—not an eight-stop filter. Once the three naming systems are separated, the numbers become much easier to understand. This guide explains the progression from ND2 …
Month: March 2026
An affordable ND filter can be a useful exposure tool, but a low price does not automatically make a filter good value. The real cost includes any loss of sharpness, difficult color correction, flare, uneven density, mechanical vignetting, or replacement purchases caused by choosing the wrong size or strength. The best budget option is therefore …