SUPERIOR IMAGE QUALITY - Crafted from Water White Glass, this 6.6x6.6' filter ensures exceptional clarity and prevents color shifts, maintaining true-to-life colors in your photographs. PRECISE LIGHT REDUCTION - Achieve stunning effects with the 1.8 (6-Stop) Neutral Density, allowing wider apertures in bright conditions and creative motion blur, enhancing your artistic vision. ENHANCED DURABILITY - The robust glass construction of this Tiffen filter withstands demanding shooting conditions, offering long-lasting performance and reliability for professional use. OPTIMAL FILTER SIZE - Measuring 6.6 x 6.6' (167.6 x 167.6mm), this filter is perfectly sized for professional setups, providing full coverage and seamless integration with compatible systems.