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