Cokin A154 Neutral Density Filter (ND8X) (0.9) A-Series camera filter

Cokin A-Series ND8X filter

This Cokin A154 neutral density filter fits the A-Series holder system and reduces exposure by three full stops without shifting colour balance. It is intended for photographers who need longer shutter speeds or wider apertures in bright conditions. The filter slides into the standard A-Series slot and works alongside other filters in the same holder. It suits landscape, travel and creative-motion work where light control is essential.

Build integration and flexibility

The filter mounts in any Cokin A-Series filter holder, leaving the lens front free for a hood or additional filters such as polarisers or graduated ND types. No thread adapter is required because the square format slides directly into the holder rails. Stacking with other A-Series filters is possible, so exposure reduction can be combined with colour correction or special effects in a single setup. The slim profile avoids vignetting on most wide-angle lenses when used in the designated holder.

Behaviour under sustained use

The optical glass maintains consistent density during extended exposures, preventing the colour drift that can appear with lesser materials during multi-minute shots. Heat from continuous sunlight does not alter the nominal .9 density value, so exposure calculations remain reliable throughout a session. The neutral tone stays neutral across the frame, preserving highlight detail and shadow separation even when the filter is used at its maximum three-stop reduction for long periods.