Mist Diffusion Clip-in Filter For Sigma FP/BF L-Mount – Magnetic

Our Kolari Mist Diffusion Clip-In Filters for Sigma FP/BF (L-Mount) bring a refined mist effect into a compact, seamless system built for real-world shooting.

Mounted behind the lens, this setup removes the need for multiple filter sizes across your kit. You get consistent diffusion no matter what lens you’re using, making it easy to move quickly on set while maintaining a cohesive look.

The mist effect is designed to gently bloom highlights, soften contrast, and take the digital edge off modern sensors without sacrificing detail. Skin tones render more naturally, practical lights glow with a cinematic roll-off, and the overall image takes on a more organic character straight out of camera.

Each filter is crafted from Kolari’s premium optical glass and set in a precision CNC-machined aluminum magnetic frame. Designed for maximum lens compatibility, they integrate cleanly into your setup and can be paired with front-mounted filters when needed, all while maintaining consistent, high-end 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 Kolari Magnetic Clip-In Filters for Sigma FP/BF (L-Mount) are compatible with the following cameras:

Sigma FP
Sigma FP L
Sigma BF

Our Kolari Magnetic Mounting Plate 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.

Kolari Magnetic Clip-In Filters for BlackMagic Cinema Camera 6k Full Frame and PYXIS (L-Mount)

Kolari Magnetic Clip-In Filter for Sony E-Mount (Full Frame)

Kolari Magnetic Clip-In Filters for Sony APS-C E-Mount

Kolari R Magnetic Clip In Filter for Canon RF Mount

Kolari Magnetic Clip-In Filter for Nikon Z-Mount (Full Frame)

Kolari Magnetic Clip-In Filter for Fujifilm X-Mount

Kolari Magnetic Clip-in Filters for Fujifilm GFX