The K&F Concept Pro Square Filter System has won the iF DESIGN AWARD and the Red Dot Design Award.

• Ultra-thin diameter: the thickness of the holder is 12mm with a diameter of 91mm for clear light entry. It effectively reduces the likelihood of vignetting when used with ultra-wide angle lenses.
• Easy removal, no light leaks: two square filters can be mounted on one holder, and the CPL will lift when the filter holder cover is removed.
• Everything you need to get started: includes a 95mm CPL and a set of 4 adapters in diameters of 67, 72, 77, and 82mm.
• Nano-coating: ND1000 optical glass (10-stop) with 28-layer nano-coating. Provides light reduction of 10 stops, is dust-resistant, waterproof, and resistant to stains and scratches.