K&F CONCEPT Nano-X PRO 52mm True Color Variable ND CPL 2-in-1 Filter — Open-Box, 13% Off

2-in-1 Variable ND and CPL Control: This 2-in-1 filter combines a variable nd filter and a circular polarizer filter in one compact design. The self-locking structure delivers precise 1-5 stop light reduction for 8K video, long exposure, and bright outdoor shooting. At the same time, the built-in cpl filter helps cut reflections from water, glass, and other non-metallic surfaces while improving color saturation and overall scene contrast.

Ultra-Low Reflectivity with True-to-Life Color: Made with premium Japanese AGC optical glass, this nd cpl filter uses K&F CONCEPT’s exclusive coating technology with reflectivity as low as 0.15%. The ultra-low reflectivity helps reduce flare and ghosting for cleaner image quality, while true color technology helps minimize the yellow color cast often seen in some nd filter designs for more natural, accurate results.

Brass Frame for a Smooth, Secure Fit: Built with a classic brass frame and CNC one-piece machining, this K&F CONCEPT Nano-X PRO ND CPL filter offers an ideal balance of strength and flexibility. Compared with typical aluminum frames, brass provides smoother installation and removal, resists binding and deformation, and is designed for long-term use by photographers who demand reliable handling and durability.

Slim Design with No Vignetting: The ultra-slim frame and 0.01mm machining precision help secure the glass firmly while maintaining a low-profile fit on the lens. This circular polarizer filter is designed to reduce the risk of vignetting on both wide-angle and telephoto lenses. Each filter includes a unique identification code and a handcrafted genuine leather case for storage and travel.

K&F CONCEPT Nano-X PRO ND CPL Filter combines a variable ND filter and a circular polarizer filter in one compact solution for photographers and filmmakers who need precise light control and reliable image quality. The brass frame is built with CNC one-piece machining for a smooth fit, stable performance, and long-term durability. Its self-locking structure provides accurate 1-5 stop light reduction, making it suitable for 8K video, long exposure, and bright outdoor scenes. Made with Japanese AGC optical glass, the filter uses K&F CONCEPT coating technology with reflectivity as low as 0.15% to help reduce flare and ghosting. True color technology helps minimize the yellow color cast often associated with ND filters, preserving natural color reproduction. Both sides feature 36 layers of nano coatings for water resistance, oil resistance, stain resistance, and scratch resistance. The ultra-slim frame and 0.01mm machining precision help prevent vignetting on wide-angle and telephoto lenses. Each filter includes a unique identification code and a handcrafted genuine leather storage case for added protection and convenient carrying.