ND Clip-in Filters For Sigma FP/BF L-Mount – Magnetic

Our Kolari Magnetic Clip-In Filters for Sigma FP/BF (L-Mount) bring precise exposure control into a compact, streamlined system built for serious shooting. Mounted behind the lens, this design eliminates the need to manage multiple filter sizes across your kit. You can move between lenses without changing your filtration setup, which keeps your workflow fast and consistent whether you’re shooting handheld or on a full rig. The ND filters are engineered for true color neutrality, reducing light without introducing unwanted color shifts. You can shoot wide open in bright conditions, control motion with longer shutter speeds, and maintain a consistent look across scenes without fighting your grade in post. Each filter is crafted from Kolari’s premium optical glass and housed in a precision CNC-machined aluminum magnetic frame. Designed for maximum lens compatibility, they integrate seamlessly into your setup and can be paired with front-mounted filters when needed, all while preserving clean, accurate image quality. Magnetic Mounting System – Quick and secure installation inside the camera body for effortless filter changes. Professional-Grade Optics – Precision-crafted glass ensures minimal color shifts and maintains sharp, high-resolution imagery. Ultra-Slim CNC-Machined Frame – A lightweight, durable aluminum design for a perfect fit without interfering with lens operation. Premium Multi-Coatings – Anti-reflective, anti-smudge, hydrophobic, dust-resistant, and scratch-resistant coatings for superior durability. Compatible with Multiple Lenses – Works with a wide range of lenses, ensuring flexibility across different shooting setups. 3-Stop ND – ND8 (0.9) Neutral Density Filter 6-Stop ND – ND64 (1.8) Neutral Density Filter 10-Stop ND – ND1000 (3.0) Neutral Density Filter Mist Diffusion 1/4 Mist Diffusion 1/8 550nm Infrared*** 550nm Infrared*** 550nm Infrared*** 550nm Infrared*** 550nm Infrared*** 550nm Infrared*** Blue IR/NDVI*** IR Chrome Lite*** Iridium – Color Enhancing Clear – Dust Protective UV/IR Cut Hot Mirror*** UV/IR Cut Hot Mirror Pro 2*** UV/IR Cut – IR Bleed Correction ***Our infrared filters will require a full-spectrum modified camera to produce the proper effect. Our ND Clip-in Filter For Sigma FP/BF L-Mount are compatible with the following cameras: Sigma FP Sigma FP L Sigma BF Our ND Clip-in Filter For Sigma FP/BF L-Mount is required to use our clip-in filters with your camera. If you’d like to purchase additional plates, click here. Not compatible with the following lenses: Sirui 50mm f1.6 Anamorphic TTArtisan 75mm f2 TTArtisan 40mm f2 Lens.