Exposure control: 0–3 EV

The soft transition varies from 0 to 3 EV, helping balance bright and dark areas without a hard transition line.

Flexible positioning in the Sq100 system

The 100×150 mm format can slide vertically in the holder and the holder can rotate to position the transition line precisely.

IRND nano coating and ACCU-ND technology

The double-sided IRND nano coating helps suppress infrared contamination, while HOYA ACCU-ND technology supports a neutral color balance. Anti-reflection coating reduces unwanted reflections and the water-repellent surface makes outdoor use easier.

2 mm toughened optical glass

The filter is made from 2 mm chemically strengthened optical glass designed for demanding landscape and travel use. The Sq100 format also makes stacking filters quick and convenient.

Technical data

• type: graduated IRND GRAD-S filter
• series: HOYA Sq100
• size: 100×150 mm
• ND factor: 1–8
• optical density: 0–0.9
• light reduction: 0–3 EV
• glass: chemically strengthened optical glass
• glass thickness: 2 mm
• technology: ACCU-ND / IRND nano
• coatings: anti-reflection and water repellent

Package includes:

• HOYA HD Sq100 IRND8 (0.9) GRAD-S filter
• filter case
• original packaging