* 【Ultra-thin Brass Frame】 The frame is made of brass material, ultra-thin design, 0.01mm-level machining accuracy, the frame is highly fitted and fixed to the lens, and there is no vignetting when installed on the wide-angle and telephoto lenses. CNC one-piece molding combines hardness and flexibility for smooth installation and durability. 1-5 gears 8K video shooting light reduction adjustment, precise gear

* 【Ultra-high light transmittance】The lens adopts K&F Concept's exclusive coating technology, and the reflectivity as low as 0.15% ensures ultra-high light transmittance. Reduces flare and ghosting that can occur when filters are attached to the lens, with little or no impact on the original performance of the lens

* 【Double-sided 36-layer Nano-coating】Super waterproof, anti-fouling, anti-scratch, provide excellent durability for your filter

* 【Handmade genuine leather filter bag】Equipped with genuine leather material specially designed by K&F Concept for photographers, pure handmade storage bag