|The Fish River Canyon photographed using a Nisi 2 stop Hard filter on the Laowa 12mm ultra-wide with it's dedicated filter holder (Nisi also makes a filter holder for this unique lens)|
Despite the incredible gains in photographic imaging over the last 20 years, one of the problems that photographers still have to contend with is the way that the visible range of tones in an image is recorded on a sensor (or film for that matter). Nowadays we talk about dynamic range as the range of tones that a digital sensor can faithfully reproduce without either blowing out the highlights in a burned out explosion of white, or sinking the shadows into unfathomable inky blackness. The way we have gotten round this for the last 30 to 40 years is through the use of graduated neutral density filters (or GNDs for short). These are particularly important for landscape photography as it is in this genre of that we most come across the problem of bright skies against a dark foreground.