U-V transmitting visible absorbing filter made from premium ZWB1 material for optimal performance. Precision-engineered with a thickness tolerance of ±0.05mm, ensuring reliable and accurate measurements in laboratory environments. Effective aperture greater than 90%, providing excellent light transmission for various optical applications. Cold working process enhances durability and surface accuracy, making it suitable for rigorous testing environments. Ideal for scientific research, photography, and other applications requiring optical filtration.