The Zacuto Z-Finder is a high-quality viewfinder specifically designed for the Sony FS5. I am selling this accessory to organize my camera gear. The FS5, capable of 4K recording and featuring a convenient built-in variable ND filter, is still actively used by many. The only drawback, especially for older users, is the difficulty in viewing the viewfinder. However, this viewfinder kit was a great help. I've attached some images of it mounted on the FS5. It can be attached in front or behind depending on your needs, which is convenient. This is a cut above the cheaper, inferior products. It's securely fixed with a dedicated stay, eliminating any wobble. The viewfinder provides a clear and large view. - Brand: Zacuto - Model: Z-Finder - Compatibility: Sony FS5 only Everything shown in the pictures is included (the FS5 camera is not included). I believe all the parts listed in the English instruction manual are present. The rubber has no stickiness, but there is some dust. I'm not confident in cleaning it, so I'm selling it as is. There are some minor wiping scratches on the internal lens. There is one spare anti-fog filter, still unused with the protective sheet attached. The installation is a bit complex, but there are videos on YouTube. Are there any FS5 users interested?