Filterfotograf® Reverse GND 0.9 (ND8) – Rectangular filter 100x150mm made of Ultra HD glass with nano-coating

Technical details:

• Format: 100x150mm rectangular filter
• Type: Reverse GND (Graduated Neutral Density)
  
• Density: 0.9 (ND8) – Light reduction by 3 f-stops
• Thickness: 2mm – compatible with all common 100mm filter systems
• Material: Ultra HD optical glass
• Coating: AR+AF Nano-Coating (Anti-Reflection & Anti-Stick)
• Properties: multi-coated, color-neutral, scratch-resistant, oil and dirt repellent
• Optimized GND gradient: developed by Riko Best
• Scope of delivery: 1x filter including high-quality padded transport bag and 1x XXL filter cloth
  

Filterfotograf® 100x150mm Reverse GND 0.9 (ND8) Rectangular Filter – Ultra HD Glass, Nano-Coating, Designed for Dramatic Lighting Situations

The Filterfotograf® Reverse GND 0.9 (ND8) is a professional 100x150mm rectangular reverse gradient filter specifically designed for sunrises and sunsets. With a density of 0.9 (equivalent to ND8) , it reduces light by 3 f-stops in the central area—directly at the horizon—while tapering gently upwards and remaining completely clear toward the bottom.

This special characteristic allows for targeted darkening of the particularly bright horizon area while maintaining balanced exposure of the foreground and sky – perfect for situations where the sun is directly on the horizon.

Made from high-quality Ultra HD optical glass with a thickness of 2 mm , the filter offers outstanding image quality, color fidelity and maximum robustness – ideal for outdoor use under changing conditions.

Reverse GND – For sunsets with a perfect gradient

With its reversed gradient edge, this Reverse GND filter is ideal for sunrise or sunset shots when the sun is directly on the horizon. The ND gradient was developed by Riko Best himself based on years of practical experience with optical filters and precisely tuned for these special lighting situations. The result is a balanced, photographer-friendly gradient that reliably attenuates bright horizon areas without unnaturally affecting the sky or foreground.

Ultra HD glass – maximum optical quality
Thanks to the extremely clear, optical Ultra HD glass, the filter delivers outstanding image sharpness – even when used with high-resolution sensors and wide-angle lenses. The filter is completely color-neutral and guarantees the highest level of detail without any impairment due to glass defects or color casts.

AR+AF Nano-Coating – High-tech for tough use
The filter is coated with a state-of-the-art AR+AF nano-coating :

• AR (Anti-Reflective) : reduces reflections and prevents unwanted light glare – especially in backlight or when the sun is low.
• AF (Anti-Fouling) : dirt and water repellent – ​​protects the surface from oil, fingerprints, dust and moisture and makes cleaning much easier.

Scratch-resistant & durable – built for outdoors
The hardened glass surface makes the filter extremely resistant to scratches and mechanical stress – ideal for outdoor use, travel or demanding environments