The ConFlat (CF) Zinc Selenide (ZnSe) Viewport comes with a 2.75" ConFlat flange, offering a 0.90" view diameter for optimal visibility. Its viewport window is skillfully crafted from zinc selenide (ZnSe) and encased within a sturdy stainless steel housing and flange. This viewport is designed to be fully compatible with ultra-high vacuum (UHV) systems, ensuring seamless integration into vacuum setups. Moreover, it can withstand baking at temperatures up to 200°C, making it ideal for high-temperature processes while maintaining its integrity.