Freewell Ultra-Slim Locking Filter System (49-95mm)

The Freewell Ultra-Slim Locking Filter System (49-95mm) is an advanced modular optical platform engineered to deliver comprehensive exposure control and cinematic visual styling for professional videographers and photographers. Created by Freewell, this ecosystem features a hybrid mounting mechanism that unites rapid magnetic pre-alignment with positive clockwise mechanical locking, ensuring total security and eliminating the risk of accidental detachment during active shooting on gimbals or in rough weather.

Each solid filter is meticulously crafted with an ultra-thin profile measuring just 2.95mm in thickness and weighing approximately 18.4 grams, effectively preventing vignetting even when paired with ultra-wide focal lengths. The optics utilize cinema-grade optical glass enhanced with proprietary True Color multi-coatings to ensure strict spectral neutrality without color shifting across the frame. The modular architecture supports stacking up to three filters simultaneously, allowing creators to combine solid neutral density elements from ND4 to ND32, high-efficiency circular polarizers (CPL), and creative diffusion optics like Glow Mist 1/4.

By leveraging dedicated base adapter rings covering thread diameters from 49mm to 95mm, content creators can deploy a single consolidated filter kit across diverse lenses, substantially streamlining field operations and camera bag weight. It represents an indispensable asset for landscape photographers, commercial documentary filmmakers, and run-and-gun videographers who demand lightning-fast filter swaps, robust weather sealing, and pristine optical resolution under challenging lighting setups.