- - Winner of the iF Award & Red Dot Award❤: Thanks to the exclusive innovative design concepts and outstanding design quality, K&F Concept Nano-Xcel Pro rectangular filter holder system was winner of the iF Award and Red Dot Award in 2021.
- - Ultra thin and large diameter: the holder thickness of 12 mm, 91 mm large aperture, which effectively reduces the risk of dark corners when using ultra-wide angle lenses