By slowing down your exposure time or uncontrolling your opening, you can control the field field and more easily transmit the movement. For easier and repeatable command on the density settings, the front ring is displayed visually with numbers representing the different stop values ​​and features of the haptic comments to feel a number, without it being necessary to look at the ring. The ring comprises lateral moussers for secure adhesion and allowing more quick and accurate positioning. To help ensure consistent exposures, the front ring is designed to prevent rotation beyond engraved shutdown values.

This filter is constructed from quartz glass for increased durability. To prevent ghosts and internal reflections, 16 layers of anti-reflective coatings offer scratch protection with the filter substrate while promoting clarity and color fidelity. Coatings allows more efficient cleaning.

Quartz optics is defined in an aluminum alloy filter assembly for durability while remaining light. The unique 360 ​​defender hybrid housing / housing is included for storage and transport and acts as a front cap when the filter is in place on a lens and as a rigid dust and waterproof storage box by adding the lid back when the filter is not in use.