H-K9L premium optical glass construction ensures superior clarity and durability for your optical and photography applications. Available in various sizes: 12.5mm, 25mm and 50x50mm, to meet various creative and equipment needs. The optical density range of 0.1 to 1.0 allows precise light control, for reducing light intensity without affecting color balance. Designed for a wide range of application wavelengths of 400-1100nm, making it suitable for various lighting conditions and environments. Each filter is meticulously crafted with a wavefront transmission error of λ/4@633nm and a dimensional tolerance of +0.0/-0.1mm for optimal performance.
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