Hot Mirror Clip-in Filter For Sigma FP/BF L-Mount – Magnetic

Our Kolari UV/IR Clip-in Filters for Sigma FP/BF L-Mount are designed to block ultraviolet and infrared light while allowing only visible wavelengths (400–700nm) to pass through. This makes it essential for photographers using full-spectrum cameras who want to shoot in normal visible light. By cutting out these unwanted wavelengths, the Hot Mirror Filter restores natural color accuracy, improves sharpness, and delivers true-to-life results.

Engineered with the professional-grade optics that Kolari is known for, these filters are securely housed in a CNC-machined aluminum magnetic frame designed to maximize lens compatibility. This universal solution fits perfectly with lenses lacking filter threads and can be paired with external lens filters for added filtration effects.

We are launching Kolari Magnetic Clip-In Filters for Sigma FP and BF (L-Mount) with a limited number of units available for immediate fulfillment.

Initial orders will ship within 3–5 business days.

Once the first batch is sold through, additional orders will be fulfilled from our next production run, which is expected to ship in approximately 2 months.

Due to the limited quantity available at launch, early orders will be fulfilled on a first-come, first-served basis.

If you have any questions about current availability or timing, feel free to contact us and we’ll be happy to help.

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.

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.