Nisi Square Filter 150mm System S6 PRO CPL Kit for Sigma 14-24mm f2.8 DG HSM I purchased this a while ago and used it a few times. I was hoping to do long exposure photography eventually, but I've become busy with work and haven't had the chance to use it, so I'm putting it up for sale. The holder has a matte finish, so there may be some minor scratches. Please check the photos. Official description below: ----------------------- The S6 Holder Kit is a holder system developed for landscape photographers who want to use filters freely with ultra-wide-angle lenses. Each part is made by precisely machining aluminum with a CNC machine, providing excellent durability and operability. It can be equipped with a dedicated circular filter and up to two square filters. The holder frame rotates 360° freely, enabling filter work in any shooting environment. It is attached to various ultra-wide-angle lenses that do not have a filter thread via a dedicated lens adapter. By adding the separately sold "S Series Adapter Ring," it can also be attached to lenses with 77mm/82mm filter threads (only some models are supported). Included items: Holder frame Up to two 150mm wide square filters (sold separately) can be attached. Dedicated circular filter A circular filter designed specifically for the S6. The "PRO CPL" is included in this kit. Lens adapter A dedicated lens adapter that matches the shape of the lens. The lens adapter differs depending on the compatible lens. Protection cap A cap that protects the filter and lens by attaching it to the lens adapter when the square holder is removed. You can store the equipment without removing the CPL filter or adapter ring from the lens. S6 Holder Case A dedicated case that can store the S6 kit (holder frame, dedicated circular filter, lens adapter). Retail price: 48,400 yen (tax included)