K&F 58mm screw-in metal double-sided magnetic filter holder, black, for iPhone 17 Pro Max

The K&F Concept 58mm Screw-In Double-Sided Magnetic Filter Holder for iPhone 17 Pro Max is a precision-engineered metal mount that enables secure use of professional 58mm threaded camera filters. Featuring ultra-strong N52 neodymium magnets, aviation-grade aluminum construction, and full lens, flash, and signal compatibility, it delivers a stable, protective, and expandable mobile photography solution.

The K&F CONCEPT 58mm Double-Sided Magnetic Filter Holder is custom-designed specifically for the iPhone 17 Pro Max, offering photographers and content creators a professional-grade filter mounting solution. Precisely engineered to match the iPhone’s lens module, it features a triangular lens cutout and rectangular Deco opening, ensuring a perfect fit without affecting the camera, flash, or antenna signal. A large flash opening combined with antenna hollowing prevents light leakage and signal interference, maintaining full phone performance.

Equipped with a double-sided magnetic system, the holder integrates 17 N52 neodymium magnets on the front and 8 on the back, delivering a powerful 2500gs (approx. 8N) magnetic force. This allows fast, stable attachment of filters while also supporting magnetic expansion accessories such as fill lights and tripods. The magnetic design ensures quick mounting and removal while remaining secure during normal use.

Built for durability and protection, the mount is constructed from high-quality aviation aluminum alloy, offering excellent strength, heat dissipation, and resistance to deformation. Large-area non-slip silicone padding on both sides enhances grip and shock absorption, while the integrated bezel strip, lanyard hole, and included brand lanyard provide double security against drops.

The universal 58mm threaded filter ring is compatible with all major filter types, including ND, CPL, UV, star, and specialty filters. Featuring four precision-cut thread rings, it ensures filters screw in tightly without loosening or obstructing the camera lens. Designed for best performance on a bare iPhone, it also supports Apple official cases or third-party cases when used with the included magnetic ring.

This magnetic filter holder transforms the iPhone 17 Pro Max into a powerful mobile photography tool, combining professional expandability, robust protection, and seamless usability.

Key Features:

• Custom-fit design for iPhone 17 Pro Max
• Double-sided magnetic mount with 25 N52 neodymium magnets
• Strong 2500gs (≈8N) magnetic suction
• Supports magnetic accessories (fill lights, tripods, etc.)
• Universal 58mm threaded filter compatibility
• Aviation-grade aluminum alloy construction
• Non-slip silicone padding for enhanced grip and shock absorption
• Integrated lanyard hole with included safety lanyard
• Precision threading ensures secure filter attachment
• Full compatibility with camera, flash, and signal performance