KF High-End Square Bracket System, with built-in 95mm CPL, with 67/72/77/82mm adapter ring K&F Concept

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The K&F Concept KF High-End Square Bracket System is a professional-grade filter holder featuring a built-in 95mm CPL and an ultra-slim 12mm design that minimizes vignetting on ultra-wide lenses. Awarded the iF and Red Dot Design Awards, it includes four adapter rings and supports stacking two square filters for maximum creative control.

The K&F Concept KF High-End Square Bracket System is an award-winning professional filter solution designed for photographers who demand exceptional clarity, versatility, and zero vignetting performance. Its ultra-thin 12mm bracket with a large 91mm opening accommodates ultra-wide-angle lenses while ensuring clean, unobstructed image quality. The intuitive design allows stacking two square filters while the built-in 95mm CPL rises automatically when lifting the holder cover for fast, effortless operation. The system includes a set of four adapter rings (67mm, 72mm, 77mm, 82mm), ensuring broad compatibility across multiple lenses. Equipped with 36-layer Nano-X coating, the included optics—such as the ND1000 (10-stop)—offer superior resistance to water, dust, oil, and scratches while producing high-definition, color-accurate results. This bracket system is the ideal choice for landscape photographers requiring maximum flexibility in challenging lighting conditions.

Key Features:

• iF Design Award & Red Dot Design Award winner
• Ultra-thin 12mm bracket with 91mm clear opening
• Built-in 95mm CPL with lift-assist mechanism
• Supports stacking two square filters simultaneously
• Includes 4 adapter rings (67mm / 72mm / 77mm / 82mm)
• ND1000 optical glass with 36-layer nano-coating
• Waterproof, dustproof, stain-resistant, and scratch-resistant
• Minimizes vignetting on ultra-wide lenses

• 1 × K&F Concept KF High-End Square Filter Holder
• 1 × Built-in 95mm CPL
• 1 × ND1000 (10-stop) filter (as specified)
• 4 × Adapter rings (67mm, 72mm, 77mm, 82mm)

• Bracket thickness: 12mm
• Clear opening: 91mm
• Built-in filter: 95mm Circular Polarizer (CPL)
• Coating: 36-layer Nano-X multi-coating
• Optical filter rating: ND1000 (10 stops)
• Material: Aviation-grade aluminum alloy + optical glass
• Supported filters: Up to 2 square filters + built-in CPL
• Lens compatibility: 67mm / 72mm / 77mm / 82mm (via adapter rings)