The HOYA Sq100 square filter system offers the premium series of square HD filters for long exposure shots. Incorporating the latest cutting-edge technology, the HDSq100 IRND1000 filter is a deep density IRND filter that is recommended for more creative shots relying on extremely low shutter speeds. It allows the photographer to capture dramatic, unreal fantasy worlds that cannot be seen with the naked eye.

Made from hardened glass, the HDSq100 is designed to withstand harsh conditions during travel and adventure. The nano IRND coating on both sides of the clear optical filter glass not only removes infrared pollution but also creates a truly neutral color balance through the applied ACCU-ND technology. This prevents any possible color casting in your images. Additionally, the water-repellent and anti-reflective coating drastically minimizes the risk of unwanted light reflections while increasing light transmission.

The filter glass is made from 2mm thick hardened optical glass, providing four times the strength of common filter glass, making this filter highly recommended for use even in extreme shooting conditions.

The stacking of square filters is extremely convenient due to the easy and quick handling and the very low risk of vignetting. Stacking ND filters specifically is one of the most common practices in photography, as it allows the photographer to easily create entirely new effects in the images. For example, the combination of HDSq100 IRND8 + HDSq100 IRND1000 will create the effect equivalent to ND8000, allowing for the capturing of the sun’s surface without overexposure and with solid color and visibility of black spots.