Cokin X-Pro Series Filter Holder BX-100 for X-Pro (XL) Series

The Cokin X-Pro Series Filter Holder (model BX-100) is a dedicated mounting system designed specifically for use with Cokin's X-Pro (also known as XL) series of photographic filters. It serves as an intermediary component that attaches to the front of a camera lens, allowing photographers to securely position square or rectangular resin filters in front of the optical element. This system is essential for applying graduated neutral density filters, polarisers, colour correction gels, and special effects filters without the need for multiple, expensive screw-in options for different lens diameters. The holder is engineered to accommodate lenses with very large front diameters, up to 112mm, making it suitable for professional wide-angle and telephoto lenses. A key technical feature is its compatibility with ultra-wide focal lengths, starting from 15mm on a full-frame camera sensor, without causing vignetting (dark corners) in the image. It typically consists of an adapter ring that screws onto the lens thread, the holder frame itself which slides onto the ring, and slots for inserting one or multiple filters. The design allows for quick filter changes and precise positioning, which is crucial for landscape, architectural, and creative photography. This filter holder is best suited for serious amateur and professional photographers who already use or plan to invest in the Cokin X-Pro series filter system. It is particularly valuable for landscape photographers needing graduated ND filters to balance sky and land exposure, or for anyone wanting to use creative colour and effect filters. The system offers a cost-effective and flexible solution compared to buying individual circular filters for each lens size, consolidating a photographer's filter kit into one adaptable setup.